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ALC5628 i 2 s/pcm stereo dac with headphone and mono class-d speaker amplifier datasheet rev. 1.2 26 june 2009 track id: jatr-1076-21 realtek semiconductor corp. no. 2, innovation road ii, hsinchu science park, hsinchu 300, taiwan tel.: +886-3-578-0211. fax: +886-3-577-6047 www.realtek.com www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier ii track id: jatr-1076-21 rev. 1.2 copyright ?2009 realtek semiconductor corp. all rights reserved. no part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permissi on of realtek semiconductor corp. disclaimer realtek provides this document ?as is?, without warranty of any kind. realtek may make improvements and/or changes in this document or in the product de scribed in this document at any time. this document could include technical inaccura cies or typographical errors. trademarks realtek is a trademark of realtek semiconductor cor poration. other names mentioned in this document are trademarks/registered trademar ks of their respective owners. using this document this document is intended for the hardware and soft ware engineer?s general information on the realtek ALC5628 audio dac ic. though every effort has been made to ensure that th is document is current and accurate, more information may have become available subsequent to the production of this guide. revision history revision release date summary 1.0 - preliminary release. 1.1 - preliminary release. 1.2 2009/06/26 first release. www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier iii track id: jatr-1076-21 rev. 1.2 table of contents 1. general desc ription ............................................................................................................ ..................................1 2. features ....................................................................................................................... ..................................................2 3. system applications............................................................................................................ ...................................3 4. block diagram .................................................................................................................. .........................................4 4.1. f unction b lock ............................................................................................................................... .........................4 4.2. a udio m ixer p ath ............................................................................................................................... ......................5 5. pin assignments ................................................................................................................ .........................................6 5.1. g reen p ackage and v ersion i dentification ........................................................................................................6 6. pin descriptions............................................................................................................... ..........................................7 6.1. d igital i/o ............................................................................................................................ .....................................7 6.2. a nalog i/o............................................................................................................................ .....................................7 6.3. f ilter /r eference ............................................................................................................................... .......................7 6.4. p ower /g round ............................................................................................................................... ...........................8 7. functional description......................................................................................................... ..............................9 7.1. p ower ............................................................................................................................... ..........................................9 7.2. r eset ............................................................................................................................... ...........................................9 7.2.1. power-on re set (por) ........................................................................................................... ...............................9 7.3. c locking ............................................................................................................................... ...................................10 7.4. i 2 c c ontrol i nterface ............................................................................................................................... ...........11 7.4.1. addressing setting ............................................................................................................. ...................................11 7.4.2. complete data transfer ......................................................................................................... ..............................11 7.4.3. odd-addressed re gister access .................................................................................................. .........................12 7.5. d igital d ata i nterface ............................................................................................................................... .........12 7.5.1. i 2 s/pcm inte rface ................................................................................................................ ................................12 7.6. a nalog s ignal p ath ............................................................................................................................... ...............14 7.6.1. line input ..................................................................................................................... ........................................14 7.6.2. speaker output ................................................................................................................. ....................................14 7.6.3. headphone output............................................................................................................... .................................15 7.6.4. stereo dac..................................................................................................................... ......................................15 7.6.5. headphone mixer ................................................................................................................ .................................15 7.6.6. speaker mixer.................................................................................................................. .....................................16 7.7. p ower m anagement ............................................................................................................................... ................16 7.8. h eadphone d epop ............................................................................................................................... ....................16 7.9. avc c ontrol ............................................................................................................................... ...........................17 7.10. z ero c ross ............................................................................................................................... ...............................18 8. register descriptions.......................................................................................................... ...............................19 8.1. r eg -00 h : s oftware r eset ............................................................................................................................... .......19 8.2. r eg -02 h : s peaker o utput v olume .......................................................................................................................19 8.3. r eg -04 h : h eadphone o utput v olume .................................................................................................................19 8.4. r eg -0a: line i nput v olume ............................................................................................................................... ..20 8.5. r eg -0c: s tereo dac d igital v olume .................................................................................................................20 8.6. r eg -16 h : s oft d elay v olume c ontrol t ime ......................................................................................................21 8.7. r eg -1c h : o utput m ixer c ontrol ........................................................................................................................21 www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier iv track id: jatr-1076-21 rev. 1.2 8.8. r eg -34 h : s tereo a udio s erial d ata p ort c ontrol ..........................................................................................22 8.9. r eg -38 h : s tereo dac c lock c ontrol ................................................................................................................22 8.10. r eg -3a h : p ower m anagement a ddition 1..........................................................................................................23 8.11. r eg -3c h : p ower m anagement a ddition 2 ..........................................................................................................24 8.12. r eg -3e h : p ower m anagement a ddition 3 ..........................................................................................................25 8.13. r eg -40 h : g eneral p urpose c ontrol ...................................................................................................................25 8.14. r eg -42 h : g lobal c lock c ontrol ........................................................................................................................26 8.15. r eg -44 h : pll m/n c ode c ontrol .........................................................................................................................26 8.16. r eg -5a h : j ack d etect c ontrol ...........................................................................................................................27 8.17. r eg -5c h : misc1 c ontrol ............................................................................................................................... .......27 8.18. r eg -5e h : misc2 c ontrol ............................................................................................................................... .......28 8.19. r eg -68 h : a utomatic v olume c ontrol (avc) c ontrol ...................................................................................29 8.20. r eg -6a h : p rivate r egister i ndex ........................................................................................................................29 8.21. r eg -6c h : p rivate r egister d ata .........................................................................................................................29 8.22. p rivate -21 h : a uto v olume c ontrol r egister 1 ...............................................................................................30 8.23. p rivate -22 h : a uto v olume c ontrol r egister 2 ...............................................................................................30 8.24. p rivate -23 h : a uto v olume c ontrol r egister 3 ...............................................................................................30 8.25. p rivate -24 h : a uto v olume c ontrol r egister 4 ...............................................................................................30 8.26. p rivate -25 h : a uto v olume c ontrol r egister 5 ...............................................................................................31 8.27. p rivate -39 h : d igital i nternal r egister ............................................................................................................31 9. electrical char acteristics ..................................................................................................... .....................32 9.1. dc c haracteristics ............................................................................................................................... ................32 9.1.1. absolute maxi mum ratings ....................................................................................................... ...........................32 9.1.2. recommended oper ating conditions ............................................................................................... ....................32 9.1.3. static charac teris tics ......................................................................................................... ..................................32 9.2. a nalog p erformance c haracteristics ..............................................................................................................33 9.3. ac t iming c haracteristics ............................................................................................................................... ...34 9.3.1. i 2 c control in terface............................................................................................................ ................................34 9.3.2. i 2 s/pcm interface master mode .................................................................................................... ......................35 9.3.3. i 2 s/pcm interfa ce slave mode..................................................................................................... ........................36 10. application circuits ........................................................................................................... ............................37 11. mechanical dimensions.......................................................................................................... .......................38 12. ordering information ........................................................................................................... ........................39 www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier v track id: jatr-1076-21 rev. 1.2 list of tables t able 1. d igital i/o p ins ............................................................................................................................... ..........................7 t able 2. a nalog i/o p ins ............................................................................................................................... .........................7 t able 3. f ilter /r eference p ins ............................................................................................................................... ..............7 t able 4. p ower /g round p ins ............................................................................................................................... ..................8 t able 5. r eset o peration ............................................................................................................................... ........................9 t able 6. p ower -o n r eset v oltage ............................................................................................................................... ........9 t able 7. pll c lock s etting t able for 48k (u nit : mh z ).................................................................................................10 t able 8. pll c lock s etting t able for 44.1k (u nit : mh z )..............................................................................................10 t able 9. mx00 s oftware r eset ............................................................................................................................... ............19 t able 10. mx02 s peaker o utput v olume ...........................................................................................................................19 t able 11. mx04 h eadphone o utput v olume ......................................................................................................................19 t able 12. mx0a line i nput v olume ............................................................................................................................... .....20 t able 13. mx0c s tereo dac d igital v olume ...................................................................................................................20 t able 14. mx16 s oft d elay v olume c ontrol t ime ..........................................................................................................21 t able 15. mx1c o utput m ixer c ontrol .............................................................................................................................21 t able 16. mx34 s tereo a udio s erial d ata p ort c ontrol ...............................................................................................22 t able 17. mx38 s tereo dac c lock c ontrol .....................................................................................................................22 t able 18. mx3a p ower m anagement a ddition 1 ..............................................................................................................23 t able 19. h eadphone d rive a bility s election ..................................................................................................................23 t able 20. mx3c p ower m anagement a ddition 2...............................................................................................................24 t able 21. mx3e p ower m anagement a ddition 3...............................................................................................................25 t able 22. mx40 g eneral p urpose c ontrol ........................................................................................................................25 t able 23. mx42 g lobal c lock c ontrol .............................................................................................................................26 t able 24. mx44 pll m/n c ode c ontrol .............................................................................................................................26 t able 25. mx5a j ack d etect c ontrol ............................................................................................................................... .27 t able 26. mx5c misc1 c ontrol ............................................................................................................................... ...........27 t able 27. mx5e misc2 c ontrol ............................................................................................................................... ...........28 t able 28. mx68 a utomatic v olume c ontrol (avc) c ontrol ........................................................................................29 t able 29. mx6a p rivate r egister i ndex .............................................................................................................................29 t able 30. mx6c p rivate r egister d ata ..............................................................................................................................2 9 t able 31. pr21 a uto v olume c ontrol r egister 1 ............................................................................................................30 t able 32. pr22 a uto v olume c ontrol r egister 2 ............................................................................................................30 t able 33. pr23 a uto v olume c ontrol r egister 3 ............................................................................................................30 t able 34. pr24 a uto v olume c ontrol r egister 4 ............................................................................................................30 t able 35. pr25 a uto v olume c ontrol r egister 5 ............................................................................................................31 t able 36. pr39 d igital i nternal r egister .........................................................................................................................31 t able 37. a bsolute m aximum r atings ............................................................................................................................... .32 t able 38. r ecommended o perating c onditions .................................................................................................................32 t able 39. t hreshold v oltage ............................................................................................................................... ...............32 t able 40. a nalog p erformance c haracteristics .............................................................................................................33 t able 41. i 2 c c ontrol i nterface t iming .............................................................................................................................34 t able 42. i 2 s m aster m ode t iming ............................................................................................................................... ........35 t able 43. i 2 s s lave m ode t iming ............................................................................................................................... ...........36 t able 44. o rdering i nformation ............................................................................................................................... ...........39 www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier vi track id: jatr-1076-21 rev. 1.2 list of figures f igure 1. b lock d iagram ............................................................................................................................... ........................4 f igure 2. a udio m ixer p ath ............................................................................................................................... ....................5 f igure 3. p in a ssignments ............................................................................................................................... .......................6 f igure 4. d ata t ransfer o ver i 2 c c ontrol i nterface ...................................................................................................11 f igure 5. w rite word p rotocol ............................................................................................................................... ........11 f igure 6. r ead word p rotocol ............................................................................................................................... ..........11 f igure 7. pcm s tereo d ata m ode a f ormat ( sel _ i 2 s _ data _ format =10? b , ctrl _ i 2 s _ bclk _ polarity =0? b ) ............12 f igure 8. pcm s tereo d ata m ode a f ormat ( sel _ i 2 s _ data _ format =10? b , ctrl _ i 2 s _ bclk _ polarity =1? b ) ............13 f igure 9. pcm s tereo d ata m ode b f ormat ( sel _ i 2 s _ data _ format =11? b , ctrl _ i 2 s _ bclk _ polarity =0? b ).............13 f igure 10. i 2 s d ata f ormat ( sel _ i 2 s _ data _ format =00? b )................................................................................................13 f igure 11. l eft -j ustified d ata f ormat ( sel _ i 2 s _ data _ format =01? b , ctrl _ i 2 s _ bclk _ polarity =0? b ) .......................14 f igure 12. avc b lock of dac m odule ............................................................................................................................... 17 f igure 13. avc b ehavior ............................................................................................................................... ........................17 f igure 14. z ero c ross d isabled when o utput m uted .......................................................................................................18 f igure 15. z ero c ross e nabled when o utput m uted ........................................................................................................18 f igure 16. g lobal c lock c ontrol ............................................................................................................................... ........26 f igure 17. i 2 c c ontrol i nterface w aveform .....................................................................................................................34 f igure 18. i 2 s m aster m ode w aveform ............................................................................................................................... 35 f igure 19. i 2 s s lave m ode w aveform ............................................................................................................................... ...36 f igure 20. a pplication c ircuits ............................................................................................................................... .............37 www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 1 track id: jatr-1076-21 rev. 1.2 1. general description the ALC5628 is a highly-integrated i 2 s/pcm interface audio dac with multiple input/output ports and is designed for multimedia and communication handheld devices. it provides a stereo hi-fi dac for playback via the i 2 s/pcm interface and is controlled by the i 2 c interface. to reduce component count, the device can connect to: ? line_in stereo single-ended analog inputs (can be configured to mono differential analog input) ? single-ended stereo headphone ? mono or stereo bridge-tied load (btl) speaker multiple analog input and output pins are provided for seamless integration with analog connected wireless communication devices. differential input/output connec tions efficiently reduce noise interference, providing better sound quality. the class-d amplifier can be directly connected to a 2.4 watt mono speaker, removing the need for an additional amplifier, further cutting both cost and required board area. the ALC5628 avdd operates at s upply voltages from 2.3v to 3.6v. dcvdd and dbvdd operate from 1.8v to 3.6v, and spkvdd operates from 2.3v to 5v . to extend battery life, each section of the device can be powered down individua lly under software control. l eakage current in maximum power saving state is less than 10a. the ALC5628 is available in a 4x4mm ?green? qfn- 24 package, making it ideal for use in handheld portable systems. www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 2 track id: jatr-1076-21 rev. 1.2 2. features ? digital-to-analog converter with 100db snr and ?86db thd+n at 3.3v ? two analog stereo single-ended or one st ereo differential i nput, linein_l/r ? btl (bridge-tied load) class-d speaker output w ith on-chip 2.4w speaker driver (spkvdd=5v, 4 ? load) ? supports playback soft-mute, digital volume, digital avc ? stereo headphone output with on-chip 45mw headphone driver (avdd=3.3v, 16 ? load) ? supports pop noise suppression with external capacitor ? digital power supplied from 1.8v to 3.6v ? analog power and headphone power supplied from 2.3v to 3.6v ? power management and enhanced power saving ? internal pll can receive wi de range of clock inputs ? supports crystal oscillator ? supports sampling rate 8khz ~ 192khz ? supports i 2 c control interface ? supports three programmable data interfaces ? i 2 s, left justified or dsp ? 16/20/24-bit word lengths ? master or slave clock mode ? speaker amplifier power supplies from 2.3v to 5v ? 24-pin qfn 4x4mm package for small footprint www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 3 track id: jatr-1076-21 rev. 1.2 3. system applications ? portable media player ? mp3 player ? bluetooth a2dp (advanced audio distribution profile) headsets ? portable navigation device (pnd) www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 4 track id: jatr-1076-21 rev. 1.2 4. block diagram 4.1. function block headphone amplifier class d speaker amplifier output mixer & gain headphone amplifier dacl dacr i 2 s interface sda xti crystal osc (pll) sclk spk_ out_n spk_ out hp_ out_r hp_ out_l ALC5628 sdac bclk lrck i 2 c control interface & register line_in_r line_in_l xto osc_en vref/ depop vref cdepop figure 1. block diagram www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 5 track id: jatr-1076-21 rev. 1.2 4.2. audio mixer path figure 2. audio mixer path www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 6 track id: jatr-1076-21 rev. 1.2 5. pin assignments 16 15 14 17 18 13 12 11 10 9 8 7 19 20 21 22 23 24 3 4 5 2 1 6 avdd line_in_l/jd1 line_in_r/jd2 lrck bclk hp_out_l spk_out_n cdepop osc_en sda sclk dbvdd dcvdd dgnd xto xti sdac spkgnd nc spkvdd vref agnd hp_ out_r spk_out figure 3. pin assignments 5.1. green package and version identification green package is indicated by a ?g? in the location marked ?t? in figure 3. www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 7 track id: jatr-1076-21 rev. 1.2 6. pin descriptions 6.1. digital i/o table 1. digital i/o pins pin name type pin no description characteristic definition lrck io 5 digital audio input frame sync schmitt trigger input, output bclk io 6 digital audio serial clock schmitt trigger input, output sdac i 7 digital audio serial data input schmitt trigger input xti i 8 crystal input schmitt trigger input xto o 9 crystal output schmitt trigger output sclk i 13 i 2 c: clock input schmitt trigger input sda io 14 i 2 c: data input and output schmitt trigger input, output osc_en i 15 crystal oscillator enable control, connect to vdd or gnd vdd: crystal enabled gnd: crystal disabled schmitt trigger input 6.2. analog i/o table 2. analog i/o pins pin name type pin no description characteristic definition line_in_l/jd1 i 3 line input left channel, jack detect_1 analog input line_in_r/jd2 i 4 line input right channel, jack detect_2 analog input spk_out o 17 speaker out left channel or positive out speaker amplifier output spk_out_n o 18 speaker out right channel, negative right channel, or negative output speaker amplifier output hp_out_l o 1 headphone out left channel analog amplifier output hp_out_r o 24 headphone out right channel analog amplifier output 6.3. filter/reference table 3. filter/reference pins pin name type pin no description characteristic definition cdepop io 16 de-pop capacitor, connect 1f capacitor to analog gnd capacitor to analog ground vref o 22 reference voltage output, connect 4.7f capacitor to analog gnd capacitor to analog ground www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 8 track id: jatr-1076-21 rev. 1.2 6.4. power/ground table 4. power/ground pins pin name type pin no description characteristic definition dgnd p 10 digital gnd - dcvdd p 11 digital vdd 1.8v~3.6v (core) dbvdd p 12 digital vdd 1.8v~3.6v (io buffer) spkgnd p 19 speaker amplifier gnd - spkvdd p 21 speaker amplifier vdd 2.3v~5v agnd p 23 analog gnd - avdd p 2 analog vdd 2.3v~3.6v spkgnd p exposed pad speaker amplifier gnd must be connected to system dgnd - nc - 20 not connected - www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 9 track id: jatr-1076-21 rev. 1.2 7. functional description 7.1. power the ALC5628 has many power blocks. th e power supply limit conditions are dbvdd dcvdd and spkvdd avdd dcvdd. to prevent pop noise, we suggest that dcvdd is powered on before avdd. 7.2. reset there are two types of rese t operation: power-on-reset (por) and register reset. table 5. reset operation reset type trigger condition codec response por monitor digital power supply voltage reach v por reset all hardware logic and all registers to default values. register reset write reg00 reset all registers to default values. 7.2.1. power-on reset (por) when power is on, dcvdd passes through the v por band of the ALC5628 (v porh ~v porl ). a power-on reset (por) will generate an internal reset si gnal (por reset ?low?) to reset the whole chip. table 6. power-on reset voltage symbol min typical max unit v por_on 1.0 - 1.6 v v por_off - 1.3 - v note: the v por_off must be below v por_on . www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 10 track id: jatr-1076-21 rev. 1.2 7.3. clocking the ALC5628 supports a crystal as in ternal system clock. when the osc_ en pin is kept high or floating, the audio system clock can be selected from xti/xto or pll. when a crystal is applied, 256/384/512/768fs is required from xti/xto. if using in ternal pll as audio inte rnal clock, set the pll output to 512fs. a phase-lock loop (pll) is used to provide a flex ible input clock from 2.048mhz (64fs of 32khz) to 40mhz. typical choices are 2.048mhz, 4.096mhz, and 13m hz. the source of the pll can be set to xti or bclk by setting sel_pll_sour (reg42[14]). firmware can setup the pll to output the desired frequency for the system clock. the pll transmit formula is: f out = (xti*(n+2)) / ((m+2)*(k+2)) (typical k=2) table 7. pll clock setting table for 48k (unit: mhz) xti m code n code fvco k code fout 2.048 0 94 98.304 2 24.576 3.6864 1 78 98.304 2 24.576 4.096 0 46 98.304 2 24.576 12 14 129 98.25 2 24.5625 13 14 119 98.3125 2 24.57812 15.36 3 30 98.304 2 24.576 16 5 41 98.28571 2 24.57143 19.2 15 85 98.25882 2 24.5647 19.68 0 8 98.4 2 24.6 table 8. pll clock setting table for 44.1k (unit: mhz) xti m code n code fvco k code fout 2.048 0 86 90.112 2 22.528 3.6864 0 47 90.3168 2 22.5792 4.096 9 241 90.48436 2 22.62109 12 15 126 90.35294 2 22.58824 13 15 116 90.23529 2 22.55882 15.36 15 98 90.35294 2 22.58824 16 12 77 90.28571 2 22.57143 19.2 15 78 90.35294 2 22.58824 19.68 15 76 90.29647 2 22.57412 www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 11 track id: jatr-1076-21 rev. 1.2 7.4. i 2 c control interface i 2 c is a 2-wire half-duplex serial communi cation interface, supporting only slave mode. 7.4.1. addressing setting (msb) bit (lsb) 0 0 1 1 0 0 0 rw 7.4.2. complete data transfer data transfer over i 2 c control interface figure 4. data transfer over i 2 c control interface write word protocol figure 5. write word protocol read word protocol s: start condition a: 0 for ack, 1 for nack slave address: 7-bit device address data byte: 16-bit mixer data wr: 0 for write command ? : master-to-slave rd: 1 for read command ? : slave-to-master command code: 8-bit register address figure 6. read word protocol www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 12 track id: jatr-1076-21 rev. 1.2 7.4.3. odd-addressed register access the ALC5628 will return ?0000h? when odd-addre ssed and unimplemented registers are read. 7.5. digital data interface 7.5.1. i 2 s/pcm interface the digital to analog converter (dac) serial data is i nput via the sdac pin. the se rial data is shifted in on the rising edge of bclk (ctrl_i2s_bclk_polarity=0? b) or the falling edge (ctrl_i2s_bclk_polarity=1?b). the left/right clock (lrck) signal is the frame s ync signal. left/right da ta can be swapped by en_dac_lrck_swap. the ALC5628 i 2 s/pcm interface can be configured to master mode or slave mode. in master mode (sel_i2s_mode=0?b), bclk and lrck are configured as output. in slave mode (sel_i2s_mode=1?b), bclk and lrck are configured as input. the xti provides bclk synchronized clock externally as stereo system clock. the ALC5628 supports three independent i 2 s/pcm interfaces for stereo audio data formats: ? pcm/dsp mode ? left justified mode ? i 2 s mode figure 7. pcm stereo data mode a format-1 (sel _i2s_data_format=10?b, ctrl _i2s_bclk_polarity=0?b) www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 13 track id: jatr-1076-21 rev. 1.2 figure 8. pcm stereo data mode a format-2 (sel _i2s_data_format=10?b, ctrl _i2s_bclk_polarity=1?b) figure 9. pcm stereo data mode b format (sel _i2s_data_format=11?b, ctrl _i2s_bclk_polarity=0?b) figure 10. i 2 s data format (sel_i2s_data_format=00?b) www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 14 track id: jatr-1076-21 rev. 1.2 figure 11. left-justified data format (sel_i2s_ data_format=01?b, ctrl_i2s_bclk_polarity=0?b) 7.6. analog signal path 7.6.1. line input line_in_l and line_in_r provide 2-channel stereo single-ended inputs that can be mixed into any analog output mixer. in addition, line_in_l and line_in_r can be configured as mono channel differential input by reg0a[5]: en_li_diff, which only can output to the hp mixer. ? line_in_l/r volume and mute are controlled by reg0a ? sel_li_l_vol and sel_li_r_vol can be used to power down line_in volume control ? line_in_l is pin shared with jd1 a nd can be configured by sel_jd_source ? line_in_r is pin shared with jd2 a nd can be configured by sel_jd_source 7.6.2. speaker output spk_out provides one-channel differe ntial output and can be confi gured to dual single-ended output. the spk_out source is selected in sel_spk_vol_in, as listed below: ? no input (v mid ) ? headphone mixer ? speaker mixer the ALC5628 speaker-out supports a class-d type amplifier. as the power voltage of spkvdd is usually higher than avdd, it must set class-d v mid ratio at spk_ampd_ratio_clsd in order to extend the output level. www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 15 track id: jatr-1076-21 rev. 1.2 the spk_out volume and mute are controlled by reg02. reg3e[12]: pow_spk_vol can be used to power down speaker output. reg3c[14]: pow_clsd is used to power down the class-d amplifier. spk_out supports ?soft volume delay mute? and ?zero-crossing detect? f unctions which can be enabled by reg5c[15]:en_sp_l_dezero, reg5c[14]:e n_sp_l_softvol, reg5c[1 3]:en_sp_r_dezero, and reg5c[12]:en_sp_r_softvol. 7.6.3. headphone output hp_out_l/r provides 2-channel si ngle-ended output. the source of hp_out_l/r can be selected from sel_hp_l_in & sel_hp_r_in as below. ? v mid ? headphone mixer the hp_out_l/r volume and mute are contro lled by reg04. besides, reg3e[10]: pow_hp_l_vol and reg3e[9]: pow_hp_r_vol can be used to power down the hp output volume. hp_out supports ?soft volume delay mute? and ?zero-crossing detect? functions which can be enabled by reg5c[11]:en_hp_l_dezero, reg5c[10]: en_hp_l_softvol, reg5c[9 ]:en_hp_r_dezero, and reg5c[8]:en_hp_r_softvol. hp_out_l/r source can be selected from dac st ereo output (reg1c[1]: en_dac_hp) for high quality performance playback. 7.6.4. stereo dac the stereo dac can be configured to different sample rates by dr iving 256fs/384fs into audio sysclk, and individually set by sel_i2s_bclk_ms (reg38[12]). dac_l_vol & dac_r_vol can be used to control the dac output volume. 7.6.5. headphone mixer the headphone (hp) mixer is used to drive ster eo output, including hp_out _l/r and spk_out (p/n) (spk_out_l/r). the following signals can be mixed into the headphone mixer: ? line_in_l/r (controlled by reg0a) ? stereo dac output (controlled by reg0c) when the spk_out source is from hp mixer, spk_out can be confi gured to stereo single-ended or mono differential output by setting spkon_source_clsd (reg1c[15:14]). the headphone mixer can be powered down by setting pow_mix_hp_l (r eg3c[5]) & pow_mix_hp_r (reg3c[4]). www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 16 track id: jatr-1076-21 rev. 1.2 7.6.6. speaker mixer the speaker (spk) mixer is used to drive spk_out. the following signals can be mixed into the speaker mixer: ? line_in_l/r (controlled by reg0a) ? stereo dac output (controlled by reg0c) note: the speaker mixer can be powered down by setting pow_mix_spk (reg3c[3]). 7.7. power management the ALC5628 supports detailed powe r management control registers within reg3a, 3c, and 3e. each particular block will be active only when individua l bits of reg3a, 3c, and 3e are set to enable. 7.8. headphone depop the ALC5628 provides a headphone depop mechanism in order to eliminate the pop noise of headphone out. an external 1 f capacitor is required in this applicatio n. refer to the ALC5628 application notes (separate document) for details. www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 17 track id: jatr-1076-21 rev. 1.2 7.9. avc control the automatic volume control (avc) function dynami cally adjusts the input signal quantized by dac to an expected sound level by setting thmax and thmin. when the average level of input signal quantized by dac is higher than thmax, the avc will decrease the selected analog gain to atte nuate the quantized pulse code m odulation (pcm) signal to a lower amplitude than thmax. when the average level of input signal quantized by dac is lower than thmin, the avc will increase the selected analog gain to am plify the input signal. the quantized pcm signal is then set to a higher amplitude than thmin. the quan tized pcm has an average level between thmin and thmax. in order to avoid outputting a strong am plified signal when the gain detect or input level is transiting from a very small signal to a normal signal, the avc bloc k will limit the selected analog gain to unit gain (=0db) when the input level of the ga in detector is lower than thnonact. figure 12. avc block of dac module figure 13. avc behavior www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 18 track id: jatr-1076-21 rev. 1.2 7.10. zero cross when zero-cross detect is enabled, the ALC5628 w ill change each output volume or mute only if the signal swing crosses the zero point. this function can avoid pop noise when volume is changed or muted. figure 14. zero cross disabled when output muted figure 15. zero cross enabled when output muted www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 19 track id: jatr-1076-21 rev. 1.2 8. register descriptions 8.1. reg-00h: software reset default: 0003?h table 9. mx00 software reset name bits rw default description id 15:8 r 00?h chip id reserved 7:0 r 03?h reserved 8.2. reg-02h: speaker output volume default: 9f9f?h table 10. mx02 speaker output volume name bits rw default description mute_sp_l 15 rw 1?h mute speaker output positive/negative 0: on 1: mute (- db) reserved 14:13 r 0?h reserved sel_sp_l_vol 12:8 rw 1f?h spk left output volume (spkl[4:0]) in 1.5db steps mute_sp_r 7 rw 1?h mute spk right channel reg1c[15:14] = 01?b, mute by reg02[15] 0: on 1: mute (- db) reserved 6:5 r 0?h reserved sel_sp_r_vol 4:0 rw 1f?h spk right output volume ( spkr[4:0]) in 1.5db steps note: for spkr/spkl: 00h: 0db attenuation. 1fh: 46.5db attenuation. 8.3. reg-04h: headphone output volume default: 9f9f?h table 11. mx04 headphone output volume name bits rw default description mute_hp_l 15 rw 1?h mute left headphone amp control 0: on 1: mute left channel (- db) reserved 14:13 r 0?h reserved sel_hp_l_vol 12:8 rw 1f?h headphone output left volume (hpl[4:0]) in 1.5db steps mute_hp_r 7 rw 1?h mute right headphone amp control 0: on 1: mute left channel (- db) reserved 6:5 r 0?h reserved sel_hp_r_vol 4:0 rw 1f?h headphone output right volume (hpr[4:0]) in 1.5db steps note: for hpr/hpl: 00h: 0db attenuation. 1fh: 46.5db attenuation. www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 20 track id: jatr-1076-21 rev. 1.2 8.4. reg-0ah: line input volume default: c8c8?h table 12. mx0a line input volume name bits rw default description mute_lil2hp 15 rw 1?h mute left volume output to headphone left mixer control 0: on 1: mute mute_lil2spk 14 rw 1?h mute left volume output to speaker mixer control 0: on 1: mute reserved 13 r 0?h reserved sel_li_l_vol 12:8 rw 08?h line-in left volume (nlv[4:0]) in 1.5db step mute_lir2hp 7 rw 1?h mute right volume output to headphone right mixer control* 0: on 1: mute mute_lir2spk 6 rw 1?h mute right volume output to speaker mixer control* 0: on 1: mute en_li_diff 5 rw 0?h line-in differential input control 0: disable 1: enable. only output to hp left mixer sel_li_r_vol 4:0 rw 08?h line-in right volume (nrv[4:0]) in 1.5db steps* note: for nrv/nlv: 00h: +12 db gain 08h: 0 db attenuation 1fh: 34.5 db attenuation note: ?*? indicates no function when reg-0a[5] = 1?b. 8.5. reg-0ch: stereo dac digital volume default: ffff?h table 13. mx0c stereo dac digital volume name bits rw default description mute_dacl2hp 15 rw 1?h mute dac left channel digital volume output to headphone mixer control 0: on 1: mute (- db) mute_dacl2spk 14 rw 1?h mute dac left channel digital volume output to speaker mixer control 0: on 1: mute (- db) dac_l_vol 13:8 rw 3f?h dac left channel digital volume (plv[5:0]) in 0.75db steps mute_dacr2hp 7 rw 1?h mute right channel dac digital volume output to headphone mixer control 0: on 1: mute (- db) mute_dacr2spk 6 rw 1?h mute right channel dac digital volume output to speaker mixer control 0: on 1: mute (- db) dac_r_vol 5:0 rw 3f?h dac right channel digital volume (prv[5:0]) in 0.75db steps note: for prv/plv: 00h: +12db gain 10h: 0db attenuation 3fh: 35.25db attenuation www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 21 track id: jatr-1076-21 rev. 1.2 8.6. reg-16h: soft delay volume control time default: 0009?h table 14. mx16 soft delay volume control time name bits rw default description reserved 15:4 r 0?h reserved sel_sync_softvol 3:0 rw 1001?b soft volume change delay time (default=1001b) 0000: 1 svsync 0001: 2 svsync 0010: 4 svsync 0011: 8 svsync 0100: 16 svsync 0101: 32 svsync 0110: 64 svsync 0111: 128 svsync 1000: 256 svsync 1001: 512 svsync 1010: 1024 svsync others: reserved note: svsync=1/fs, step: -1.5dbfs. 8.7. reg-1ch: output mixer control default: 8004?h table 15. mx1c output mixer control name bits rw default description spkon_source_clsd 15:14 rw 2?h reg1c any mixer to spkout [15:14] spk_out spk_out_n config control register config control register 00'b vol_lp reg02[15:8] vol_rn reg02[7:0] 01'b vol_lp reg02[15:8] vol_rp reg02[7:0] 10'b vol_lp reg02[15:8] vol_ln reg02[15:8] 11'b mute mute mute mute reserved 13:12 r 0?h reserved sel_spk_vol_in 11:10 rw 00?h spk volume output source select 00: vmid (no input) 01: hp mixer 10: speaker mixer (diff out) 11: reserved sel_hp_l_in 9 rw 0?h hpl volume output source select 0: vmid (no input) 1: hp left mixer sel_hp_r_in 8 rw 0?h hpr volume output source select 0: vmid (no input) 1: hp right mixer reserved 7:3 r 0?b reserved en_spk_vol_diff 2 rw 1?h spk volume differential negative signal output enable 0: disable negative signal 1: enable negative signal en_dac_hp 1 rw 0?b dac direct output to hp amplifier control 0: normal 1: enable direct output reserved 0 r 0?b reserved www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 22 track id: jatr-1076-21 rev. 1.2 8.8. reg-34h: stereo audio serial data port control default: 8000?h table 16. mx34 stereo audio serial data port control name bits rw default description sel_i2s_mode 15 rw 1?h main serial data port mode selection 0: master 1: slave reserved 14:8 r 0?h reserved ctrl_i2s_bclk_polarity 7 rw 0?h stereo i 2 s bclk polarity control 0: normal 1: invert reserved 6:5 r 0?h reserved en_dac_lrck_swap 4 rw 0?h dac data l/r swap 0: dac data appears at left phase of lrck 1: dac data appears at right phase of lrck note: supports i 2 s & pcm. sel_i2s_data_len 3:2 rw 0?h data length selection 00: 16 bits 01: 20 bits 10: 24 bits 11: reserved sel_i2s_data_format 1:0 rw 0?h stereo pcm data format selection 00: i 2 s format 01: left justified 10: pcm mode a (lrck one plus at master mode) 11: pcm mode b (lrck one plus at master mode) 8.9. reg-38h: stereo dac clock control default: 2000?h table 17. mx38 stereo dac clock control name bits rw default description sel_i2s_pre_div 15:13 rw 1?h i 2 s pre-divider 000b: 1 001b: 2 010b: 4 011b: 8 100b: 16 101b: 32 others: reserved sel_i2s_bclk_ms 12 rw 0?b master mode clock relative to bclk and lrck 0b: 32bits (64fs) 1b: 16bits (32fs) reserved 11:3 r 0?h reserved sel_dac_filter_clk 2 rw 0?b stereo dac filter clock select 0b: 256fs 1b: 384fs reserved 1:0 r 0?h reserved www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 23 track id: jatr-1076-21 rev. 1.2 8.10. reg-3ah: power management addition 1 default: 0000?h table 18. mx3a power management addition 1 name bits rw default description en_main_i2s 15 rw 0?h i 2 s digital interface enable 0: disable 1: enable pow_zcd 14 rw 0?h all zero cross detect power down (includes digital) 0: disable 1: enable reserved 13:9 r 0?h reserved pow_softgen 8 rw 0?h power on softgen 1: power on 0: power down note: when pow_softgen=1, whether the hp can be driven depends on the level on cdepop (d epneds in depop mode selection) reserved 7:6 r 0?h reserved en_hp_out_amp 5 rw 0?h 1: enable hp output buffer for no rmal loading (used to drive high impedance) 0: disable (dpop mode) en_hp_enhance_amp 4 rw 0?h 1: enable hp enhance output buffer 0: disable (dpop mode or normal loading mode) reserved 3:0 r 0?h reserved the following table describes bit 4 & bit 5: table 19. headphone drive ability selection en_hp_out_amp en_hp_enhance_amp description 0?b 0?b hp output off 0?b 1?b not used 1?b 0?b hp output for high-impedance loading (>kohm) 1?b 1?b hp output for low-impedance loading (<100ohm) www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 24 track id: jatr-1076-21 rev. 1.2 8.11. reg-3ch: power management addition 2 default: 0000?h table 20. mx3c power management addition 2 name bits rw default description reserved 15 r 0?h reserved pow_clsd 14 rw 0?b 0: disable 1: enable all class-d power pow_vref 13 rw 0?h 0: disable 1: enable vref for all analog circuit (control to vref pin) pow_pll 12 rw 0?h 0: disable 1: enable pll reserved 11 rw 0?h reserved (must be set to 0) pow_dac_ref 10 rw 0?h 0: disable 1: enable dac reference circuit (vref+/vref-) pow_dac_l 9 rw 0?h 0: disable 1: enable left stereo dac and its filter clock pow_dac_r 8 rw 0?h 0: disable 1: enable right stereo dac and its filter clock pow_dacl2mixer_direct 7 rw 0?h 0: disable 1: enable left dac to mixer and direct path power pow_dacr2mixer_direct 6 rw 0?h 0: disable 1: enable right dac to mixer and direct path power pow_mix_hp_l 5 rw 0?h 0: disable 1: enable left headphone mixer pow_mix_hp_r 4 rw 0?h 0: disable 1: enable right headphone mixer pow_mix_spk 3 rw 0?h 0: disable 1: enable speaker mixer reserved 2:0 r 0?h reserved www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 25 track id: jatr-1076-21 rev. 1.2 8.12. reg-3eh: power management addition 3 default: 0000?h table 21. mx3e power management addition 3 name bits rw default description pow_main_bias 15 rw 0?h 0: disable 1: enable main bias of analog circuit reserved 14:13 r 0?h reserved pow_spk_vol 12 rw 0?h 0: disable 1: enable spk_out output note: power speaker volume controls the class-d speaker output. reserved 11 r 0?h reserved pow_hp_l_vol 10 rw 0?h 0: disable 1: enable hp_out_l volume control & hp_l amplifier pow_hp_r_vol 9 rw 0?h 0: disable 1: enable hp_out_r volume control & hp_r amplifier reserved 8 r 0?h reserved pow_li_l_vol 7 rw 0?h 0: disable 1: enable line_in left volume control pow_li_r_vol 6 rw 0?h 0: disable 1: enable line_in right volume control reserved 5:0 r 0?h reserved (must be set to ?0?) 8.13. reg-40h: general purpose control default: 0100?h table 22. mx40 general purpose control name bits rw default description reserved 15:12 r 0?h reserved spk_ampd_ratio_clsd 11:9 rw 0?h speaker class-d amplifier v mid ratio control (output gain control) 000: 2.25vdd 001: 2.00vdd 010: 1.75vdd 011: 1.5vdd 100: 1.25vdd 101: 1vdd others: not allowed en_dac_hpf 8 rw 1?h stereo dac high pass filter 0: disable 1: enable reserved 7:0 r 0?h reserved www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 26 track id: jatr-1076-21 rev. 1.2 8.14. reg-42h: global clock control default: 0000?h table 23. mx42 global clock control name bits rw default description sel_sysclk 15 rw 0?h clock source mux control 0: xti 1: pll sel_pll_sour 14 rw 0?h pll source select 0: from xti 1: from bit_clk reserved 13:3 r 0?h reserved sel_pll_pre_div 0 rw 0?b pll pre divider 0b: 1 1b: 2 pll xti i 2 s clock tree /2 bclk audio sysclk pll & clock tree figure 16. global clock control 8.15. reg-44h: pll m/n code control default: 0000?h table 24. mx44 pll m/n code control name bits rw default description sel_pll_n_code 15:8 rw 00?h n[7:0] code for analog pll 00000000: div 2 00000001: div 3 ???? 111 11111: div 257 sel_pll_m_bypass 7 rw 0?h bypass pll m 0b: no bypass 1b: bypass sel_pll_k_code 6:4 rw 0?h k[2:0] code for analog pll 000: div 2 001: div 3 ???? 111: div 9 sel_pll_m_code 3:0 rw 0?h m[3:0] code for analog pll 0000: div 2 0001: div 3 ???? 1111: div 17 www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 27 track id: jatr-1076-21 rev. 1.2 8.16. reg-5ah: jack detect control default: 0000?h table 25. mx5a jack detect control name bits rw default description sel_jd_source 15:14 rw 0?h jack detect select 00: off 01: reserved 10: jd1 and enable line in left ch. pin share 11: jd2 and enable line in right ch. pin share en_jd_vref 13 rw 0?b enable jack detect trigger vref 0: disable 1: enable polarity_jd_tri_vref 12 rw 0?b selected jack detect polarity trigger vref 0: low trigger 1: high trigger en_jd_hpout 11 rw 0?h enable jack detect trigger hpout 0: disable 1: enable polarity_jd_tri_hpout 10 rw 0?h select jack detect polarity trigger hpout 0: low trigger 1: high trigger en_jd_spkout 9 rw 0?h enable jack detect trigger spkout 0: disable 1: enable polarity_jd_tri_spkout 8 rw 0?h select jack detect polarity trigger spkout 0: low trigger 1: high trigger reserved 7:4 r 0?b reserved polarity_jd_out 3 rw 0?h jack detect polarity 0: normal 1: output invert status_jd_internal 2 r 0?h jack detect status read: return status of jack detect select output reserved 1:0 r 0?b reserved 8.17. reg-5ch: misc1 control default: 0000?h table 26. mx5c misc1 control name bits rw default description en_sp_l_dezero 15 rw 0?h spk volume zero cross detector control (spk left volume zero cross detector when reg1c[15:14] = 01?b) 0: disable 1: enable en_sp_l_softvol 14 rw 0?h spk soft volume change enable (spk left soft volume change enable when reg1c[15:14] = 01?b) 0: disable 1: enable en_sp_r_dezero 13 rw 0?h spk right zero cross detector 0: disable 1: enable www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 28 track id: jatr-1076-21 rev. 1.2 name bits rw default description en_sp_r_softvol 12 rw 0?h spk right soft volume change enable 0: disable 1: enable en_hp_l_dezero 11 rw 0?h hp out left zero cross detector control 0: disable 1: enable en_hp_l_softvol 10 rw 0?h hp out left soft volume change control 0: disable 1: enable en_hp_r_dezero 9 rw 0?h hp out right zero cross detector control 0: disable 1: enable en_hp_r_softvol 8 rw 0?h hp out right soft volume control 0: disable 1: enable reserved 7:4 r 0?h reserved en_dac_zc 3 rw 0?b enable dac digital volume zero crossing detect 0: disable 1: enable en_dac_soft_vol 2 rw 0?b enable dac digital soft volume 0: disable 1: enable reserved 1:0 r 0?h reserved note: when zero cross detector is enabled, change mute volume only on zero crossing or after timeout. 8.18. reg-5eh: misc2 control default: 0000?h table 27. mx5e misc2 control name bits rw default description en_vref_fastb 15 rw 0?b enable fast vref (this bit must be disabled in normal use) 0: enable fast vref 1: disable fast vref en_thermal_shutdown 14 rw 0?b thermal shut down enable 0: disable 1: enable reserved 13:10 r 0?h reserved en_dp2_hp 9 rw 0?h enable de-pop mode 2 of hp_out 0: disable 1: enable en_dp1_hp 8 rw 0?h enable de-pop mode 1 of hp_out 0: disable 1: enable en_smt_hp_l 7 rw 0?h enable hp_l mute-unmute depop 0: disable 1: enable en_smt_hp_r 6 rw 0?h enable hp_r mute-unmute depop 0: disable 1: enable smt_en 5 rw 0?h mute-unmute depop 0: disable 1: enable reserved 4 r 0?h reserved mute_dac_l 3 rw 0?h mute main dac left input 0: on 1: mute (- db) mute_dac_r 2 rw 0?h mute main dac right input 0: on 1: mute (- db) reserved 1:0 r 0?h reserved www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 29 track id: jatr-1076-21 rev. 1.2 8.19. reg-68h: automatic volume control (avc) control default: 100b?h table 28. mx68 automatic volume control (avc) control name bits rw default description en_avc 15 rw 0?b avc enable (default: 00b) 0: disable avc 1: enable avc to control digital gain sel_avc_ref_ch 14 rw 0?b avc reference channel selection 0: left channel 1: right channel sel_nonact_action 13 rw 0?b gain action of non-active region 0: keep previous gain 1: unit gain reserved 12:5 r 80?h reserved sel_monitor_window 4:0 rw 0b?h monitor window control (unit: 2^(n+1) samples) (default: 01011b) 00000b: 2^(1) samples 00001b: 2^(2) samples 00010b: 2^(3) samples ??? 10000b: 2^(17) samples others: reserved (maximum=10000000000000000=2^17) 8.20. reg-6ah: private register index default: 0000?h table 29. mx6a private register index name bits rw default description reserved 15:7 r 0?h reserved private_reg_index 6:0 rw 0?h private register index 8.21. reg-6ch: private register data default: 0000?h table 30. mx6c private register data name bits rw default description private_reg_data 15:0 rw 0?h private register data port www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 30 track id: jatr-1076-21 rev. 1.2 8.22. private-21h: auto volume control register 1 default: 0400?h table 31. pr21 auto volume control register 1 name bits rw default description reserved 15 r 0?h reserved sel_avc_thmax 14:0 rw 0400?h the maximum pcm absolute level after avc, thmax (=0 ~ 2^15-1) 8.23. private-22h: auto volume control register 2 default: 0390?h table 32. pr22 auto volume control register 2 name bits rw default description reserved 15 r 0?h reserved sel_avc_thmin 14:0 rw 0390?h the minimum pcm absolute level after avc, thmin (=0 ~ 2^15-1) 8.24. private-23h: auto volume control register 3 default: 0040?h table 33. pr23 auto volume control register 3 name bits rw default description reserved 15 r 0?h reserved sel_avc_thnonact 14:0 rw 0040?h the non-active pcm absolute level avc will keep analog unit gain, thnonact (=0 ~ 2^15-1) 8.25. private-24h: auto volume control register 4 default: 03ff?h table 34. pr24 auto volume control register 4 name bits rw default description sel_avc_cntminth 15:0 rw 03ff?h cntmaxth1 contro ls the sensitivity to increased gain (unit:2^1) this value should be less than cntmaxth2 (max=11111111111111110=2^17-2) www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 31 track id: jatr-1076-21 rev. 1.2 8.26. private-25h: auto volume control register 5 default: 0400?h table 35. pr25 auto volume control register 5 name bits rw default description sel_avc_cntmaxth 15:0 rw 0400?h cntmaxth2 contro ls the sensitivity to decreased gain (unit: 2^1) this value should be less than monitor window (optimal: 1/2 monitor window) (max=11111111111111110=2^17-2) 8.27. private-39h: digital internal register default: 8800?h table 36. pr39 digital internal register name bits rw default description sel_pad_drive 15 rw 1?h pad drive capability 0b: 5ma 1b: (5+6) 11ma reserved 14:12 r 0?b reserved osc_curr 11:9 rw 100?b oscillator drive current control 000: 1x bias current 001: 2x 010: 4x 011: 8x 100: 16x ???.. 111: 128x note: the oscillator startup current is set to maximum, and controlled by osc_curr after 512 clocks. the digital clock input is enabled after 1024 clocks. reserved 8:0 r 0?b reserved www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 32 track id: jatr-1076-21 rev. 1.2 9. electrical characteristics 9.1. dc characteristics 9.1.1. absolute maximum ratings table 37. absolute maximum ratings parameter symbol minimum typical maximum units power supplies digital power for core digital power for io and pll analog and hp amplifier power speaker amplifier power dcvdd dbvdd avdd spkvdd -0.3 -0.3 -0.3 -0.3 - - - - 3.63 3.63 3.63 7 v v v v ambient operating temperature ta -20 - +85 o c storage temperature ts -40 - +125 o c 9.1.2. recommended operating conditions table 38. recommended operating conditions parameter symbol min typ max units digital io buffer dbvdd 1.8 3.3 3.6 v digital core dcvdd 1.8 3.3 3.6 v analog avdd 2.3 3.3 3.6 v speaker spkvdd* 2.3 3.3 5 v note: a 10f capacitor must be connected from spkvdd to spkgnd, and should be placed as close as possible to the spkvdd pin of the ALC5628. 9.1.3. static characteristics dbvdd= 3.3v, t ambient =25c, with 25pf external load. table 39. threshold voltage parameter symbol minimum typical maximum units input voltage range v in -0.30 - dbvdd +0.30 v low level input voltage v il - - 0.33*dbvdd v high level input voltage v ih 0.66*dbvdd - - v high level output voltage v oh 0.9*dbvdd - - v low level output voltage v ol - - 0.1*dbvdd v low level input voltage (jd2) v il - - 0.33*avdd v high level input voltage(jd2) v ih 0.66*avdd - - v www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 33 track id: jatr-1076-21 rev. 1.2 9.2. analog performance characteristics standard test conditions ? t ambient =25 o c, dbvdd=dcvdd=1.8v, avdd=3.3v, spkvdd=5v, 1khz input sine wave; sampling frequency=48khz; 0db=1vrms, 10k ? /50pf load; test bench char acterization bw: 10hz~22khz, 0db attenuation table 40. analog performance characteristics parameter minimum typical maximum units full scale input voltage line_in inputs (gain=0db) - 1.0 - vrms full scale output voltage dac outputs hp_out outputs spk_out outputs - - - 1.0 1.0 1.5 - - - vrms vrms vrms s/n (a weighted) dac headphone amplifier output (rl=32 ? , po=20mw) - - 100 95 - - dbfs dbfs thd+n dac headphone amplifier output (rl=32 ? , po=20mw) - - -86 -80 - - dbfs dbfs power supply rejection (217hz) - -50 - db amplifier gain step - 1.5 - db crosstalk between input channels - -80 - db hp amplifier quiescent current (rl=32 ? @ 3.3v) - 600 - a hp amplifier output power (rl=16 ? ) 25 45 - mw spk class-d amplifier qu iescent current (rl=8 ? @ 5v) - 4 - ma spk class-d amplifier output power (rl=4 ? @ 5v, 0.1% thd+n) - 1.6 - w spk class-d amplifier output power (rl=8 ? @ 5v, 0.1% thd+n) - 1 - w spk class-d amplifier output power (rl=4 ? @ 5v, 1% thd+n) - 1.7 - w spk class-d amplifier output power (rl=8 ? @ 5v, 1% thd+n) - 1.1 - w spk class-d amplifier output power (rl=4 ? @ 5v, 10% thd+n) - 2.4 - w spk class-d amplifier output power (rl=8 ? @ 5v, 10% thd+n) - 1.5 - w digital power supply current (power down mode) dcvdd=1.8v, dbvdd=1.8v (include por circuit) - - 10 a analog power supply current (dac to headphone without load) avdd=dcvdd=dbvdd=spkvdd=3.3v - 8 - ma analog power supply current (power down mode) avdd=3.3v - - 1 a vref output voltage - 0.5 - avdd vref rising time at fast mode (c=4.7f) - - 50 ms www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 34 track id: jatr-1076-21 rev. 1.2 9.3. ac timing characteristics 9.3.1. i 2 c control interface table 41. i 2 c control interface timing parameter symbol minimum typical maximum units clock pulse duration t w(9) 1.3 - - s clock pulse duration t w(10) 600 - - ns clock frequency f 0 - 400k* hz re-start setup time t su(6) 600 - - ns start hold time t h(5) 600 - - ns data setup time t su(7) 100 - - ns data hold time t h(6) - - 900 ns rising time t r - - 300 ns falling time t f - - 300 ns stop setup time t su(8) 600 - - ns pulse width of spikes suppressed input filter t sp 0 - 50 ns note: ?*? indicates the host must provide mclk higher than 4mhz to the ALC5628 during i 2 c control interface access. if mclk provides 128*8khz, the i 2 c clock frequency can only support 100khz. figure 17. i 2 c control interface waveform www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 35 track id: jatr-1076-21 rev. 1.2 9.3.2. i 2 s/pcm interface master mode table 42. i 2 s master mode timing parameter symbol minimum typical maximum units lrck output to bclk delay t lrd - - 30 ns data output to bclk delay t add - - 30 ns data input setup time t das 10 - - ns data input hold time t dah 10 - - ns figure 18. i 2 s master mode waveform www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 36 track id: jatr-1076-21 rev. 1.2 9.3.3. i 2 s/pcm interface slave mode table 43. i 2 s slave mode timing parameter symbol minimum typical maximum units bclk high pulse width t bch 20 - - ns bclk low pulse width t bcl 20 - - ns lrck input setup time t lrs 30 - - ns data input setup time t das 10 - - ns data input hold time t dah 10 - - ns figure 19. i 2 s slave mode waveform www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 37 track id: jatr-1076-21 rev. 1.2 10. application circuits application circuits are for design reference only. system designers ar e suggested to visit realtek?s web site to download the latest application circuits. to get the best compatibility in hardware design and software driver, realtek should confirm modifications of a pplication circuits. dvdd dbvdd avdd spkvdd hp_out_r clk_crystal1 hp_out_l clk_crystal2 line_in_l line_in_r dacdat hp_out_l hp_out_r spk_out spk_out_n bclk lrck clk_crystal1 clk_crystal2 sclk sda li_p line_in_r line_in_l li_n dcvdd dbvdd hp_r cdepop vref dbvdd dcvdd spkvdd spkvdd avdd avdd hp_l spk_out_n spk_out c8 0.1u c6 1u c9 4.7u c12 1u ph2 line_in 1 2 3 4 5 c13 1u ca2 1000pf ca1 1uf + cs1 10u cs2 1000pf r33 1m c2 1000pf u2 crystal 24.576mhz 1 2 c19 20p c1 1uf c20 20p bead rgnd2 rgnd1 0 + c21 100 + c18 100u ph3 hpo 1 2 3 4 5 qfn24 u1-1 3 4 5 6 9 7 8 10 11 12 13 14 16 18 19 17 21 22 23 24 1 2 15 25 20 line_in_l line_in_r lrck bclk xto dacdat xti dgnd dcvdd dbvdd sclk sda cdepop spk_out_n spkgnd spk_out spkvdd vref agnd hp_out_r hp_out_l avdd osc_en down_gnd nc c5 22p c4 22p j3 spk_con line-in hp-out dgnd agnd power / gnd close to ic crystal clk close to ic ALC5628 close to ic spk_out spk-out figure 20. application circuits www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 38 track id: jatr-1076-21 rev. 1.2 11. mechanical dimensions qfn-24 package; 4x4mm outline symbol dimension in mm dimension in inch min nom max min nom max a 0.75 0.85 1.00 0.030 0.034 0.039 a 1 0.00 0.02 0.05 0.000 0.001 0.002 a 2 - 0.65 0.70 - 0.026 0.028 a 3 0.20 ref 0.008 ref b 0.18 0.25 0.30 0.007 0.010 0.012 d/e 4.00 bsc 0.158 bsc d 2 /e 2 2.00 2.25 2.50 0.078 0.088 0.098 e 0.50 bsc 0.020 bsc l 0.30 0.40 0.50 0.012 0.016 0.020 note 1: controlling dimension: millimeter (mm). note 2: reference document: jedec mo-220. www.datasheet.co.kr datasheet pdf - http://www..net/
ALC5628 datasheet i2s/pcm audio dac with headphone and mono class-d speaker amplifier 39 track id: jatr-1076-21 rev. 1.2 12. ordering information table 44. ordering information part number package status ALC5628-gr qfn-24 in ?green? package (tray) mass production ALC5628-grt qfn-24 in ?green? pa ckage (tape & reel) mass production note: see page 6 for package and version identification. realtek semiconductor corp. headquarters no. 2, innovation road ii hsinchu science park, hsinchu 300, taiwan tel.: +886-3-578-0211. fax: +886-3-577-6047 www.realtek.com www.datasheet.co.kr datasheet pdf - http://www..net/

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