View MAX9714ETJT_4236102.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

general description the max9713/max9714 mono/stereo class d audio power amplifiers provide class ab amplifier performance with class d efficiency, conserving board space and eliminating the need for a bulky heatsink. using a class d architecture, these devices deliver up to 6w while offering greater than 85% efficiency. proprietary and patent-protected modulation and switching schemes render the traditional class d output filter unnecessary. the max9713/max9714 offer two modulation schemes: a fixed-frequency mode (ffm), and a spread-spectrum mode (ssm) that reduces emi-radiated emissions due to the modulation frequency. the device utilizes a fully differential architecture, a full bridged output, and com- prehensive click-and-pop suppression. the max9713/max9714 feature high 76db psrr, low 0.07% thd+n, and snr in excess of 100db. short-cir- cuit and thermal-overload protection prevent the devices from being damaged during a fault condition. the max9713 is available in a 32-pin tqfn (5mm x 5mm x 0.8mm) package. the max9714 is available in a 32-pin tqfn (7mm x 7mm x 0.8mm) package. both devices are specified over the extended -40? to +85? temperature range. applications features filterless class d amplifier unique spread-spectrum mode offers 5db emissions improvement over conventional methods up to 85% efficient 6w output power into 8 ? low 0.07% thd+n high psrr (76db at 1khz) 10v to 25v single-supply operation differential inputs minimize common-mode noise pin-selectable gain reduces component count industry-leading integrated click-and-pop suppression low quiescent current (18ma) low-power shutdown mode (0.2?) short-circuit and thermal-overload protection available in thermally efficient, space-saving packages 32-pin tqfn (5mm x 5mm x 0.8mm)?ax9713 32-pin tqfn (7mm x 7mm x 0.8mm)?ax9714 max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers ________________________________________________________________ maxim integrated products 1 19-3039; rev 3; 2/05 for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. ordering information part temp range pin-package amp max9713 etj -40 o c to +85 o c 32 tqfn-ep* mono max9714 etj -40 o c to +85 o c 32 tqfn-ep* stereo * ep = exposed paddle. lcd monitors lcd tvs desktop pcs lcd projectors high-end notebook audio hands-free car phone adaptors max9714 0.47 f inl+ outl+ outl- inl- 0.47 f h-bridge 0.47 f inr+ outr+ outr- inr- 0.47 f h-bridge pin configurations appear at end of data sheet. max9713 0.47 f in+ out+ out- in- 0.47 f h-bridge block diagrams
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers 2 _______________________________________________________________________________________ absolute maximum ratings stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. (all voltages referenced to gnd.) v dd to pgnd, agnd .............................................................30v outr_, outl_, c1n..................................-0.3v to (v dd + 0.3v) c1p............................................(v dd - 0.3v) to (chold + 0.3v) chold ........................................................(v dd - 0.3v) to +40v all other pins to gnd.............................................-0.3v to +12v duration of outr_/outl_ short circuit to gnd, v dd ......................................continuous continuous input current (v dd , pgnd, agnd) ...................1.6a continuous input current (all other pins).......................... 20ma continuous power dissipation (t a = +70 c) max9713 32-pin tqfn (derate 21.3mw/ c above +70 c)..........................................................1702.1mw max9714 32-pin tqfn (derate 33.3mw/ c above +70 c)..........................................................2666.7mw junction temperature ......................................................+150 c operating temperature range ...........................-40 c to +85 c storage temperature range .............................-65 c to +150 c lead temperature (soldering, 10s) .................................+300 c electrical characteristics (v dd = 15v, gnd = pgnd = 0v, shdn v ih , a v = 16db, c ss = c in = c reg = 0.47f, c1 = 100nf, c2 = 1f, fs1 = fs2 = gnd (f s = 330khz), r l connected between outl+ and outl- and outr+ and outr-, t a = t min to t max , unless otherwise noted. typical values are at t a = +25 c.) (notes 1, 2) parameter symbol conditions min typ max units general supply voltage range v dd inferred from psrr test 10 25 v max9713 10 17.5 quiescent current i dd r l = max9714 18 23 ma shutdown current i shdn 0.2 1.5 a c ss = 470nf 100 turn-on time t on c ss = 180nf 50 ms amplifier output resistance in shutdown shdn = gnd 150 330 k ? ? 6 30 mv common-mode rejection ratio cmrr f in = 1khz, input referred 60 db v dd = 10v to 25v 54 76 f ripple = 1khz 76 power-supply rejection ratio (note 3) psrr 200mv p-p ripple f ripple = 20khz 60 db r l = 16 ? 5.5 8 output power p out th d + n = 10%, f = 1kh z r l = 8 ? 6 w
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers _______________________________________________________________________________________ 3 electrical characteristics (continued) (v dd = 15v, gnd = pgnd = 0v, shdn v ih , a v = 16db, c ss = c in = c reg = 0.47f, c1 = 100nf, c2 = 1f, fs1 = fs2 = gnd (f s = 330khz), r l connected between outl+ and outl- and outr+ and outr-, t a = t min to t max , unless otherwise noted. typical values are at t a = +25 c.) (notes 1, 2) parameter symbol conditions min typ max units total harmonic distortion plus noise thd+n f in = 1khz, either ffm or ssm, r l = 8 ? , p out = 4w 0.07 % ffm 94 bw = 22hz to 22khz ssm 88 ffm 97 signal-to-noise ratio snr r l = 8 ? , p out = 4w, f = 1khz a-weighted ssm 91 db fs1 = l, fs2 = l 300 335 370 fs1 = l, fs2 = h 460 fs1 = h, fs2 = l 236 oscillator frequency f osc fs1 = h, fs2 = h (spread-spectrum mode) 335 khz p out = 5w, f in = 1khz, r l = 16 ? 85 efficiency p out = 4w, f = 1khz, r l = 8 ? 75 % digital inputs ( shdn , fs_, g_) v ih 2.5 input thresholds v il 0.8 v input leakage current 1a note 1: all devices are 100% production tested at +25 c. all temperature limits are guaranteed by design. note 2: testing performed with a resistive load in series with an inductor to simulate an actual speaker load. for r l = 8 ? , l = 68h. for r l = 16 ? , l = 136h. note 3: psrr is specified with the amplifier inputs connected to gnd through c in .
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers 4 _______________________________________________________________________________________ total harmonic distortion plus noise vs. frequency max9713 toc01 frequency (hz) thd+n (%) 10k 1k 100 0.1 1 10 0.01 10 100k v dd = +15v a v = 13db r l = 8 ? p out = 4w p out = 100mw total harmonic distortion plus noise vs. frequency max9713 toc02 frequency (hz) thd+n (%) 10k 1k 100 0.1 1 10 0.01 10 100k v dd = +20v a v = 13db r l = 8 ? p out = 4w p out = 100mw total harmonic distortion plus noise vs. frequency max9713 toc03 frequency (hz) thd+n (%) 10k 1k 100 0.1 1 10 0.01 10 100k v dd = +15v a v = 13db r l = 16 ? p out = 5w p out = 55mw total harmonic distortion plus noise vs. frequency max9713 toc04 frequency (hz) thd+n (%) 10k 1k 100 0.1 1 10 0.01 10 100k v dd = +20v a v = 13db r l = 16 ? p out = 7.5w p out = 120mw total harmonic distortion plus noise vs. output power max9713 toc07 output power (w) thd+n (%) 123456 0.01 0.1 1 10 100 0.001 07 v dd = 20v a v = 13db r l = 8 ? f = 100hz f = 1khz f = 10khz f = 10khz total harmonic distortion plus noise vs. frequency max9713 toc05 frequency (hz) thd+n (%) 10k 1k 100 0.1 1 10 0.01 10 100k v dd = +15v a v = 13db p out = 4w r l = 8 ? ssm ffm total harmonic distortion plus noise vs. output power max9713 toc06 output power (w) thd+n (%) 4 3 2 1 0.01 0.1 1 10 100 0.001 07 6 5 v dd = 15v a v = 13db r l = 8 ? f = 100hz f = 1khz f = 10khz total harmonic distortion plus noise vs. output power max9713 toc08 output power (w) thd+n (%) 6 4 2 0.01 0.1 1 10 100 0.001 08 v dd = 15v a v = 13db r l = 16 ? f = 100hz f = 1khz f = 10khz total harmonic distortion plus noise vs. output power max9713 toc09 output power (w) thd+n (%) 10 5 0.01 0.1 1 10 100 0.001 015 v dd = 20v a v = 13db r l = 16 ? f = 100hz f = 1khz f = 10khz typical operating characteristics (136h with 16 ? , 68h with 8 ? , part in ssm mode, unless otherwise noted.)
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers _______________________________________________________________________________________ 5 total harmonic distortion plus noise vs. output power max9713 toc10 output power (w) thd+n (%) 6 4 2 0.01 0.1 1 10 100 0.001 08 v dd = 15v a v = 13db f = 1khz r l = 8 ? ssm ffm efficiency vs. output power max9713 toc11 output power (w) efficiency (%) 8 6 4 2 10 20 30 40 50 60 70 80 90 100 0 010 r l = 16 ? r l = 8 ? v dd = 15v a v = 13db efficiency vs. output power max9713 toc12 output power (w) efficiency (%) 9 6 3 10 20 30 40 50 60 70 80 90 100 0 012 r l = 16 ? r l = 8 ? v dd = 20v a v = 13db output power vs. supply voltage max9713 toc13 supply voltage (v) output power (w) 22 19 16 13 8 7 6 5 4 3 2 1 0 10 25 a v = 13db thd+n = 10% r l = 8 ? power-supply rejection ratio vs. frequency max9713 toc16 frequency (hz) psrr (db) 10k 1k 100 -60 -50 -40 -30 -20 -10 0 -70 10 100k v dd = 15v a v = 13db v ripple = 200mv p-p r l = 16 ? 10 9 8 7 6 5 4 3 2 1 0 1 10 100 output power vs. load resistance max9713 toc14 load resistance ( ? ) output power (w) v dd = 15v a v = 13db thd+n = 10% thd+n = 1% common-mode rejection ratio vs. frequency max9713 toc15 frequency (hz) cmrr (db) 10k 1k 100 -80 -70 -60 -50 -40 -30 -20 -10 0 -90 10 100k v dd = 15v a v = 13db r l = 8 ? crosstalk vs. frequency max9713 toc17 frequency (hz) crosstalk (db) 10 1 0.1 -80 -100 -60 -40 -20 0 -120 0.01 100 left to right right to left output referred a v = 13db output frequency spectrum max9713 toc18 frequency (hz) output magnitude (db) 15 10 5 -120 -100 -80 -60 -40 -20 0 20 -140 020 ffm mode p out = 5w f =1khz r l = 8 ? unweighted typical operating characteristics (continued) (136h with 16 ? , 68h with 8 ? , part in ssm mode, unless otherwise noted.)
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers 6 _______________________________________________________________________________________ output frequency spectrum max9713 toc19 frequency (hz) output magnitude (db) 15k 10k 5k -120 -100 -80 -60 -40 -20 0 20 -140 0 20k ssm mode p out = 5w f = 1khz r l = 8 ? unweighted output frequency spectrum max9713 toc20 frequency (hz) output magnitude (db) 15k 10k 5k -120 -100 -80 -60 -40 -20 0 20 0 20k ssm mode p out = 5w f = 1khz r l = 8 ? a-weighted rbw = 10khz 0 -100 1m 10m 100m wideband output spectrum (ffm mode) -80 max1973toc21 frequency (hz) output amplitude (db) -60 -40 -20 -30 -50 -70 -90 -10 rbw = 10khz 0 -100 1m 10m 100m wideband output spectrum (ssm mode) -80 max9713toc22 frequency (hz) output amplitude (db) -60 -40 -20 -30 -50 -70 -90 -10 shutdown supply current vs. supply voltage max9713 toc25 supply voltage (v) supply current ( a) 18 16 14 12 0.10 0.05 0.15 0.20 0.25 0.30 0.35 0 10 20 turn-on/turn-off response max9713 toc23 20ms/div max9714 output 1v/div 5v/div shdn f = 1khz r l = 8 ? c ss = 180pf supply current vs. supply voltage max9713 toc24 supply voltage (v) supply current (ma) 18 16 14 12 5 10 15 20 25 0 10 20 typical operating characteristics (continued) (136h with 16 ? , 68h with 8 ? , part in ssm mode, unless otherwise noted.)
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers _______________________________________________________________________________________ 7 pin max9713 max9714 name function 1, 2, 23, 24 1, 2, 23, 24 pgnd power ground 3, 4, 21, 22 3, 4, 21, 22 v dd power-supply input 5 5 c1n charge-pump flying capacitor negative terminal 6 6 c1p charge-pump flying capacitor positive terminal 77 chold charge-pump hold capacitor. connect a 1f capacitor from chold to v dd . 8, 17, 20, 25, 26, 31, 32 8 n.c. no connection. not internally connected. 9 14 reg internal regulator output. bypass with a 0.47f capacitor to pgnd. 10 13 agnd analog ground 11 in- negative input 12 in+ positive input 13 12 ss soft-start. connect a 0.47f capacitor from ss to gnd to enable soft-start feature. 14 11 shdn active-low shutdown. connect shdn to gnd to disable the device. connect to v dd for normal operation. 15 17 g1 gain-select input 1 16 18 g2 gain-select input 2 18 19 fs1 frequency-select input 1 19 20 fs2 frequency-select input 2 27, 28 out- negative audio output 29, 30 out+ positive audio output 9 inl- left-channel negative input 10 inl+ left-channel positive input 15 inr- right-channel negative input 16 inr+ right-channel positive input 25, 26 outr- right-channel negative audio output 27, 28 outr+ right-channel positive audio output 29, 30 outl- left-channel negative audio output 31, 32 outl+ left-channel positive audio output ep exposed paddle. connect to gnd. pin description
max9713/max9714 detailed description the max9713/max9714 filterless, class d audio power amplifiers feature several improvements to switch- mode amplifier technology. the max9713 is a mono amplifier, the max9714 is a stereo amplifier. these devices offer class ab performance with class d effi- ciency, while occupying minimal board space. a unique filterless modulation scheme and spread-spec- trum switching mode create a compact, flexible, low- noise, efficient audio power amplifier. the differential input architecture reduces common-mode noise pick- up, and can be used without input-coupling capacitors. the devices can also be configured as a single-ended input amplifier. comparators monitor the device inputs and compare the complementary input voltages to the triangle wave- form. the comparators trip when the input magnitude of the triangle exceeds their corresponding input voltage. operating modes fixed-frequency modulation (ffm) mode the max9713/max9714 feature three ffm modes with different switching frequencies (table 1). in ffm mode, the frequency spectrum of the class d output consists of the fundamental switching frequency and its associ- ated harmonics (see the wideband fft graph in the typical operating characteristics ). the max9713/ max9714 allow the switching frequency to be changed by 35%, should the frequency of one or more of the harmonics fall in a sensitive band. this can be done at any time and not affect audio reproduction. spread-spectrum modulation (ssm) mode the max9713/max9714 feature a unique, patented spread-spectrum mode that flattens the wideband spectral components, improving emi emissions that may be radiated by the speaker and cables. this mode is enabled by setting fs1 = fs2 = h. in ssm mode, the switching frequency varies randomly by 1.7%khz around the center frequency (335khz). the modulation scheme remains the same, but the period of the trian- gle waveform changes from cycle to cycle. instead of a large amount of spectral energy present at multiples of the switching frequency, the energy is now spread over a bandwidth that increases with frequency. above a few megahertz, the wideband spectrum looks like white noise for emi purposes (figure 2). efficiency efficiency of a class d amplifier is attributed to the region of operation of the output stage transistors. in a class d amplifier, the output transistors act as current- steering switches and consume negligible additional power. any power loss associated with the class d out- put stage is mostly due to the i*r loss of the mosfet on-resistance, and quiescent current overhead. the theoretical best efficiency of a linear amplifier is 78%, however that efficiency is only exhibited at peak output powers. under normal operating levels (typical music reproduction levels), efficiency falls below 30%, whereas the max9714 still exhibits >80% efficiencies under the same conditions (figure 3). shutdown the max9713/max9714 have a shutdown mode that reduces power consumption and extends battery life. driving shdn low places the device in low-power (0.2a) shutdown mode. connect shdn to a logic high for normal operation. click-and-pop suppression the max9713/max9714 feature comprehensive click- and-pop suppression that eliminates audible transients on startup and shutdown. while in shutdown, the h- bridge is pulled to gnd through 300k ? . during startup, 6w, filterless, spread-spectrum mono/stereo class d amplifiers 8 _______________________________________________________________________________________ table 1. operating modes fs1 fs2 switching mode (khz) l l 335 l h 460 h l 236 h h 335 7% figure 1. max9714 outputs with no input signal applied v in = 0v out- out+
or power-up, the input amplifiers are muted and an internal loop sets the modulator bias voltages to the correct levels, preventing clicks and pops when the h- bridge is subsequently enabled. following startup, a soft-start function gradually un-mutes the input ampli- fiers. the value of the soft-start capacitor has an impact on the click/pop levels. for optimum performance, c ss should be at least 180nf. mute function the max9713/max9714 feature a clickless/popless mute mode. when the device is muted, the outputs stop switching, muting the speaker. mute only affects the output state, and does not shut down the device. to mute the max9713/max9714, drive ss to gnd by using a mosfet pulldown (figure 4). driving ss to gnd during the power-up/down or shutdown/turn-on cycle optimizes click-and-pop suppression. applications information filterless operation traditional class d amplifiers require an output filter to recover the audio signal from the amplifier s pwm out- put. the filters add cost, increase the solution size of the amplifier, and can decrease efficiency. the tradi- tional pwm scheme uses large differential output swings (2 ? v dd peak-to-peak) and causes large ripple currents. any parasitic resistance in the filter compo- nents results in a loss of power, lowering the efficiency. the max9713/max9714 do not require an output filter. the devices rely on the inherent inductance of the speaker coil and the natural filtering of both the speak- er and the human ear to recover the audio component of the square-wave output. eliminating the output filter results in a smaller, less costly, more efficient solution. because the frequency of the max9713/max9714 out- put is well beyond the bandwidth of most speakers, voice coil movement due to the square-wave frequency max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers _______________________________________________________________________________________ 9 figure 3. max9714 efficiency vs. class ab efficiency 0 30 20 10 40 50 60 70 80 90 100 0246 efficiency vs. output power output power (w) efficiency (%) max9714 v dd = 15v f = 1khz r l = 16 ? class ab figure 2. ssm radiated emissions max9713/ max9714 ss 0.18 f gpio mute signal figure 4. max9713/max9714 mute circuit
max9713/max9714 is very small. although this movement is small, a speak- er not designed to handle the additional power can be damaged. for optimum results, use a speaker with a series inductance > 30h. typical 8 ? speakers exhibit series inductances in the range of 30h to 100h. optimum efficiency is achieved with speaker induc- tances > 60h. gain selection table 2 shows the suggested gain settings to attain a maximum output power from a given peak input voltage and given load. output offset unlike a class ab amplifier, the output offset voltage of class d amplifiers does not noticeably increase quies- cent current draw when a load is applied. this is due to the power conversion of the class d amplifier. for example, an 8mv dc offset across an 8 ? load results in 1ma extra current consumption in a class ab device. in the class d case, an 8mv offset into 8 ? equates to an additional power drain of 8w. due to the high efficiency of the class d amplifier, this represents an additional quiescent current draw of: 8w/(v dd /100 ? ), which is on the order of a few microamps. input amplifier differential input the max9713/max9714 feature a differential input struc- ture, making them compatible with many codecs, and offering improved noise immunity over a single-ended input amplifier. in devices such as pcs, noisy digital sig- nals can be picked up by the amplifier s input traces. the signals appear at the amplifiers inputs as common- mode noise. a differential input amplifier amplifies the difference of the two inputs, any signal common to both inputs is canceled. single-ended input the max9713/max9714 can be configured as single- ended input amplifiers by capacitively coupling either input to gnd and driving the other input (figure 5). component selection input filter an input capacitor, c in , in conjunction with the input impedance of the max9713/max9714, forms a high- pass filter that removes the dc bias from an incoming signal. the ac-coupling capacitor allows the amplifier to bias the signal to an optimum dc level. assuming zero-source impedance, the -3db point of the highpass filter is given by: choose c in so f -3db is well below the lowest frequency of interest. setting f -3db too high affects the low-fre- quency response of the amplifier. use capacitors whose dielectrics have low-voltage coefficients, such as tantalum or aluminum electrolytic. capacitors with high-voltage coefficients, such as ceramics, may result in increased distortion at low frequencies. charge-pump capacitor selection use capacitors with an esr less than 100m ? for opti- mum performance. low-esr ceramic capacitors mini- mize the output resistance of the charge pump. for best performance over the extended temperature range, select capacitors with an x7r dielectric. flying capacitor (c1) the value of the flying capacitor (c1) affects the load regulation and output resistance of the charge pump. a c1 value that is too small degrades the device s ability to provide sufficient current drive. increasing the value of c1 improves load regulation and reduces the charge- pump output resistance to an extent. above 1f, the on- f rc - 3db in in 1 2 = 6w, filterless, spread-spectrum mono/stereo class d amplifiers 10 ______________________________________________________________________________________ table 2. gain settings gain (db) diff input (v rms ) r l ( ? ) p out at 10% thd+n (w) 13.0 1.27 16 8 16.1 0.89 16 8 19.1 0.63 16 8 22.1 0.45 16 8 13.0 0.78 8 6 16.1 0.54 8 6 19.1 0.39 8 6 22.1 0.27 8 6 max9713/ max9714 in+ in- 0.47 f 0.47 f single-ended audio input figure 5. single-ended input
resistance of the switches and the esr of c1 and c2 dominate. output capacitor (c2) the output capacitor value and esr directly affect the ripple at chold. increasing c2 reduces output ripple. likewise, decreasing the esr of c2 reduces both rip- ple and output resistance. lower capacitance values can be used in systems with low maximum output power levels. output filter the max9713/max9714 do not require an output filter. the device passes fcc emissions standards with 36cm of unshielded speaker cables. however, output filtering can be used if a design is failing radiated emis- sions due to board layout or cable length, or the circuit is near emi-sensitive devices. use a ferrite bead filter when radiated frequencies above 10mhz are of con- cern. use an lc filter when radiated frequencies below 10mhz are of concern, or when long leads connect the amplifier to the speaker. refer to the max9714 evaluation kit schematic for details of this filter. sharing input sources in certain systems, a single audio source can be shared by multiple devices (speaker and headphone ampli- fiers). when sharing inputs, it is common to mute the unused device, rather than completely shutting it down, preventing the unused device inputs from distorting the input signal. mute the max9713/max9714 by driving ss low through an open-drain output or mosfet (see the system diagram ). driving ss low turns off the class d output stage, but does not affect the input bias levels of the max9713/max9714. be aware that during normal operation, the voltage at ss can be up to 7v, depending on the max9713/max9714 supply. supply bypassing/layout proper power-supply bypassing ensures low distortion operation. for optimum performance, bypass v dd to pgnd with a 0.1f capacitor as close to each v dd pin as possible. a low-impedance, high-current power-sup- ply connection to v dd is assumed. additional bulk capacitance should be added as required depending on the application and power-supply characteristics. agnd and pgnd should be star connected to system ground. refer to the max9714 evaluation kit for layout guidance. max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers ______________________________________________________________________________________ 11 32 31 30 29 28 27 26 outl+ outl+ outl- outl- outr+ outr+ outr- 25 outr- 9 10 11 12 13 14 15 inl- inl+ ss agnd inr- reg 16 inr+ 17 18 19 20 21 22 23 g1 g2 fs1 fs2 v dd v dd pgnd 8 7 6 5 4 3 2 n.c. chold c1p c1n v dd v dd pgnd max9714 1 pgnd 24 pgnd tqfn (7mm x 7mm) shdn 32 31 30 29 28 27 26 n.c. n.c. out+ out+ out- out- n.c. 25 n.c. 9 10 11 12 13 14 15 reg agnd in- in+ ss g1 16 g2 17 18 19 20 21 22 23 n.c. fs1 fs2 n.c. v dd v dd pgnd 8 7 6 5 4 3 2 n.c. chold c1p c1n v dd v dd pgnd max9713 1 pgnd 24 pgnd top view tqfn (5mm x 5mm) shdn pin configurations chip information max9713 transistor count: 3093 max9714 transistor count: 4630 process: bicmos
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers 12 ______________________________________________________________________________________ max9713 0.47 f logic inputs shown for a v = 16db (ssm). in+ 12 11 18 14 15 16 13 10 agnd 9 6 5 19 in- fs1 v reg v reg v reg v reg fs2 g1 g2 ss reg 0.47 f modulator oscillator charge pump c1p c1 0.1 f c1n 0.18 f v ih gain control shutdown control 0.47 f shdn h-bridge out+ out+ out- out- 30 29 28 27 pgnd v dd v dd pgnd 1 3421222324 2 10v to +25v 100 f 0.1 f 0.1 f c2 1 f chold v dd 7 functional diagrams
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers ______________________________________________________________________________________ 13 max9714 0.47 f logic inputs shown for a v = 16db (ssm). inl+ 10 9 19 11 17 18 12 13 agnd 14 6 5 20 inl- fs1 v reg v reg v reg v reg fs2 g1 g2 ss reg 0.47 f modulator oscillator charge pump c1p c1 0.1 f c1n 0.18 f v ih gain control shutdown control 0.47 f shdn h-bridge outl+ outl+ outl- outl- 32 31 30 29 pgnd v dd v dd pgnd 1 3421222324 2 10v to +25v 100 f 0.1 f 0.1 f c2 1 f chold v dd 7 0.47 f inr+ 16 15 inr- 0.47 f modulator h-bridge outr+ outr+ outr- outr- 28 27 26 25 functional diagrams (continued)
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers 14 ______________________________________________________________________________________ max9714 max9722b 0.47 f v dd inl- v dd outl- shdn outl+ inl+ codec inr+ outr+ outr- 0.18 f 5v v dd outl outr pv ss sv ss inl+ inl- inr+ inr- c1p 1 f 1 f cin 100k ? inr- 0.47 f 0.47 f 0.47 f 1 f ss shdn logic inputs shown for a v = 16db (ssm) 1 f 1 f 30k ? 30k ? 15k ? 15k ? 1 f 1 f 1 f system diagram
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers ______________________________________________________________________________________ 15 32, 44, 48l qfn .eps proprietary information approval title: document control no. 21-0144 package outline 32, 44, 48, 56l thin qfn, 7x7x0.8mm 1 d rev. 2 e l e l a1 a a2 e/2 e d/2 d detail a d2/2 d2 b l k e2/2 e2 (ne-1) x e (nd-1) x e e c l c l c l c l k dallas semiconductor detail b e l l1 package information (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers 16 ______________________________________________________________________________________ proprietary information document control no. approval title: rev. 2 2 21-0144 dallas semiconductor package outline 32, 44, 48, 56l thin qfn, 7x7x0.8mm d package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers ______________________________________________________________________________________ 17 qfn thin.eps d2 (nd-1) x e e d c pin # 1 i.d. (ne-1) x e e/2 e 0.08 c 0.10 c a a1 a3 detail a e2/2 e2 0.10 m c a b pin # 1 i.d. b 0.35x45 d/2 d2/2 l c l c e e l c c l k l l detail b l l1 e xxxxx marking g 1 2 21-0140 package outline, 16, 20, 28, 32l thin qfn, 5x5x0.8mm -drawing not to scale- l package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)
max9713/max9714 6w, filterless, spread-spectrum mono/stereo class d amplifiers maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 18 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2005 maxim integrated products printed usa is a registered trademark of maxim integrated products. common dimensions 3.35 3.15 t2855-1 3.25 3.35 3.15 3.25 max. 3.20 exposed pad variations 3.00 t2055-2 3.10 d2 nom. min. 3.20 3.00 3.10 min. e2 nom. max. ne nd pkg. codes 1. dimensioning & tolerancing conform to asme y14.5m-1994. 2. all dimensions are in millimeters. angles are in degrees. 3. n is the total number of terminals. 4. the terminal #1 identifier and terminal numbering convention shall conform to jesd 95-1 spp-012. details of terminal #1 identifier are optional, but must be located within the zone indicated. the terminal #1 identifier may be either a mold or marked feature. 5. dimension b applies to metallized terminal and is measured between 0.25 mm and 0.30 mm from terminal tip. 6. nd and ne refer to the number of terminals on each d and e side respectively. 7. depopulation is possible in a symmetrical fashion. 8. coplanarity applies to the exposed heat sink slug as well as the terminals. 9. drawing conforms to jedec mo220, except exposed pad dimension for t2855-1, t2855-3 and t2855-6. notes: symbol pkg. n l1 e e d b a3 a a1 k 10. warpage shall not exceed 0.10 mm. jedec t1655-1 3.20 3.00 3.10 3.00 3.10 3.20 0.70 0.80 0.75 4.90 4.90 0.25 0.25 0 -- 4 whhb 4 16 0.35 0.30 5.10 5.10 5.00 0.80 bsc. 5.00 0.05 0.20 ref. 0.02 min. max. nom. 16l 5x5 3.10 t3255-2 3.00 3.20 3.00 3.10 3.20 2.70 t2855-2 2.60 2.60 2.80 2.70 2.80 l 0.30 0.50 0.40 -- - -- - whhc 20 5 5 5.00 5.00 0.30 0.55 0.65 bsc. 0.45 0.25 4.90 4.90 0.25 0.65 - - 5.10 5.10 0.35 20l 5x5 0.20 ref. 0.75 0.02 nom. 0 0.70 min. 0.05 0.80 max. -- - whhd-1 28 7 7 5.00 5.00 0.25 0.55 0.50 bsc. 0.45 0.25 4.90 4.90 0.20 0.65 - - 5.10 5.10 0.30 28l 5x5 0.20 ref. 0.75 0.02 nom. 0 0.70 min. 0.05 0.80 max. -- - whhd-2 32 8 8 5.00 5.00 0.40 0.50 bsc. 0.30 0.25 4.90 4.90 0.50 - - 5.10 5.10 32l 5x5 0.20 ref. 0.75 0.02 nom. 0 0.70 min. 0.05 0.80 max. 0.20 0.25 0.30 down bonds allowed no yes 3.10 3.00 3.20 3.10 3.00 3.20 t2055-3 3.10 3.00 3.20 3.10 3.00 3.20 t2055-4 t2855-3 3.15 3.25 3.35 3.15 3.25 3.35 t2855-6 3.15 3.25 3.35 3.15 3.25 3.35 t2855-4 2.60 2.70 2.80 2.60 2.70 2.80 t2855-5 2.60 2.70 2.80 2.60 2.70 2.80 t2855-7 2.60 2.70 2.80 2.60 2.70 2.80 3.20 3.00 3.10 t3255-3 3.20 3.00 3.10 3.20 3.00 3.10 t3255-4 3.20 3.00 3.10 no no no no no no no no yes yes yes yes 3.20 3.00 t1655-2 3.10 3.00 3.10 3.20 yes no 3.20 3.10 3.00 3.10 t1655n-1 3.00 3.20 3.35 3.15 t2055-5 3.25 3.15 3.25 3.35 y 3.35 3.15 t2855n-1 3.25 3.15 3.25 3.35 n 3.35 3.15 t2855-8 3.25 3.15 3.25 3.35 y 3.20 3.10 t3255n-1 3.00 no 3.20 3.10 3.00 l 0.40 0.40 ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** see common dimensions table ? 0.15 11. marking is for package orientation reference only. g 2 2 21-0140 package outline, 16, 20, 28, 32l thin qfn, 5x5x0.8mm -drawing not to scale- 12. number of leads shown are for reference only. package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)

▲Up To Search▲

Price & Availability of MAX9714ETJT

	To Download MAX9714ETJT Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .