1 of 4 GS2972 3gb/s, hd, sd sdi transmitter product brief 44723 - e june 2008 GS2972 3gb/s, hd, sd sdi transmitter www.gennum.com key features ? operation at 2.97gb/s, 2.97/1.001gb/s, 1.485gb/s, 1.485/1.001gb/s and 270mb/s ? supports smpte 425m (level a and level b), smpte 424m, smpte 292m, smpte 259m-c and dvb-asi ? integrated cable driver ? integrated low noise vco ?integrated clockcleaner ? ? integrated audio embedder for up to 8 channels of 48khz audio ? ancillary data insertion ? optional conversion from smpte 425m level a to level b for 1080p 50/60 4:2:2 10-bit ? parallel data bus selectable as either 20-bit or 10-bit ? smpte video processing including trs calculation and insertion, line number calculation and insertion, line based crc calculation and insertion, illegal code re-mapping, smpte 352m payload identifier generation and insertion ? gspi host interface ? 1.2v digital core power supply, 1.2v and 3.3v analog power supplies, and selectable 1.8v or 3.3v i/o power supply ? -20oc to +85oc operating temperature range ? low power operation (t ypically 405mw including cable driver) ? small 11mm x 11mm 100-ball bga package ? pb-free and rohs compliant applications application: 1080p 50/60 camera/camcorder adc audio processor video processor ccd 20 -bit GS2972 3g-sdi hv f/pclk ctrl/time code aes - in audio 1/2 audio 3/4 audio clocks storage : tape /disc /solid state mic optics application: dual link (hd-sdi) to single link (3g-sdi) converter hd-sdi deserializer (gs1559 or gs2970) link a fifo wr deserializer link b fifo wr GS2972 gs4910 10-bit 3g-sdi hvf xtal hv f/pclk hv f/pclk hv f/pclk (gs1559 or gs2970) 10-bit 10-bit 10-bit hd-sdi hd-sdi hd-sdi application: multi-format audio embedded module sd /hd/3 g-sdi pclk 10 -bit gs2970 GS2972 adc switch logic & buffers sd/hd/3g-sdi analog audio inputs aes audio inputs audio 1/2 audio 3/4 audio 5/6 audio 7/8 src gs4911 xtal hvf audio clocks
2 of 4 GS2972 3gb/s, hd, sd sdi transmitter product brief 44723 - e june 2008 description the GS2972 is a complete sdi transmitter, generating a smpte 424m, smpte 292m, smpte 259m-c or dvb-asi compliant serial digital output signal. the integrated clockcleaner? al lows the device to accept parallel clocks with greater than 300ps input jitter and still provide a smpte compliant serial digital output. the device can operate in four basic user-selectable modes: smpte mode, dvb-asi mode, data-through mode, and standby mode. in smpte mode, the GS2972 pe rforms smpte scrambling and nrz to nrzi coding. in ad dition, the device can insert trs words, calculate and insert line numbers and line based crcs, re-map illegal code word s, map 8-bit trs to 10-bit trs, calculate and insert edh crcs and flags, and insert smpte 352m payload identifier packets. all of the processing features are optional, and may be disabled via external control pins and/or via the host interface. the GS2972 provides ancillary data insertion in smpte mode as well. the entire ancillary packet is programmed into internal registers through the gspi host interface, including the ancillary data flag (adf), data identification words (did and sdid) and checksum. the GS2972 then recalculates the checksum and inserts the complete ancillary packet into the video stream. the user may present the parallel data as either smpte 425m level b or level a. if the parallel data is presented as level a, it may be processed and serialized as level a or converted to level b (convers ion only avai lable for 1080p 50/60 4:2:2 10-bit). if the paralle l data is presented as level b then the serial data will also be level b. in dvb-asi mode, the device will perform 8b/10b encoding prior to transmission. in data-through mode, all smpte and dvb-asi processing is disabled, and the device can be used as a simple parallel to serial converter. the device can also be plac ed in a lower power standby mode. in this mode, no signal is generated at the output. parallel data inputs must be provided in 20- bit or 10-bit multiplexed format for 3gb/s, hd and sd video rates. for 1080p 50/60 4:2:2 10-bit video fo rmats, the video data can be presented at the parallel bus with y on 10 bits and cb/cr on the other 10 bits. as such, this parallel bus can interface directly with video processor ics. for all other format described in smpte 425m, the user must map the data to the 20-bit virtual interface as described in the standard. the device can accept both the 20-bit virtual interface directly, or the equivalent pre-multiplexed 10-bit format. the associated parallel clock input signal operates at 148.5 or 148.5/1.001mhz (for all 3gb/s hd 10-bit multiplexed modes), 74.25 or 74.25/1.001mhz (for hd 20-bit mode), 27mhz (for sd 10-bit mode) and 13.5mhz (for sd 20-bit mode). note: for 3gb/s 10-bit mode th e device operates in dual data rate (ddr) mode, where the data is sampled at both the rising and falling edges of the clock. this reduces the i/o speed requirements of the downstream devices. application: multi-format digital vtr/video server storage : tape / hdd/solid state audio processor video processor 20 -bit hvf/pclk audio inputs v ideo inputs gs4911 audio clocks GS2972 3g-sdi sync seperator analog sync audio 1/2 audio 3/4 audio 5/6 audio 7/8 xtal application: 3gb/s sdi test signal generator gs4911 analog sync sync seperator video signal generator xtal audio generator memory hv f/pclk audio clocks 20 -bit GS2972 3g-sdi aes 1/2 aes 3/4 aes 5/6 aes 7/8 hv f/pclk keyer keyer application: multi-format presentation switcher (output stage) dve mixers key & fill logo inserter image store key/fill inputs GS2972 10 -bit + clk 20 -bit + clk sd/hd/3g-sdi auxiliary preview program audio mixer ae s from input dem ux v oice-over p re s e t a e s in program aes in p rogram ae s out p re v ie w a e s out i2s audio + clocks 20 -bit + clk gs4911 analog sync xtal sync seperator clock & sync distribution GS2972 GS2972 sd/hd/3g-sdi sd/hd/3g-sdi
3 of 4 GS2972 3gb/s, hd, sd sdi transmitter product brief 44723 - e june 2008 the GS2972 includes an integr ated cable driver fully compliant with smpte 259m -c, smpte 292m and smpte 424m. it features automatic dual slew-rate selection, depending on 3gb/s, hd, or sd operational requirements. up to eight channels, in two gr oups, of serial digital audio may be embedded into the video data stream, in accordance with smpte 272m and smpte 2 99m. the input audio signal formats supported by the device include aes/ebu, i 2 s and serial audio. 16, 20 and 24-bi t audio formats are supported at 48khz synchronous fo r sd modes and 48khz synchronous or asynchronous in hd or 3gb/s modes. additional audio processing features include individual channel enable, group selection, group replacement, channel swapping and audio channel status insertion. functional block diagram GS2972 functional block diagram input mux/ demux din[19:0] smpte 352m generation and insertion anc data insertion trs, line number and crc insertion edh packet insertion dvb-asi 8b/10b encoder f/de v/vsync h/hsync tim-861 parallel to serial converter mux smpte cable driver sdo sdo rset sdo_en/dis pclk gspi host interface hanc/ vanc blanking pll with low noise vco clockcleaner tm locked cs_tms sclk_tclk sdin_tdi sdout_tdo dvb_asi nrz/nrzi smpte scrambler lf vbg rate_sel[1:0] cd_vdd cd_gnd jtag controller tms tdi tdo jtag/host tck dedicated jtag pins shared jtag and gspi pins (for drop-in compatibility with the gs1572/82) core_vdd core_gnd io_vdd io_gnd reset standby 20bit/10bit anc_blank pll_vdd pll_gnd avdd agnd vco_vdd vco_gnd ioproc_en/dis smpte_bypass smpte 425m 1080p 50/60 4:2:2 10-bit level b level a
ottawa 232 herz b er g roa d , s uite 101 kanata, ontario k2k 2a1 c ana d a phone: +1 ( 6 13) 270-0458 fax: +1 ( 6 13) 270-0429 calgary 3553 - 31st s t. n.w., s uite 210 c al g ary, al b erta t2l 2k7 c ana d a phone: +1 (403) 284-2 6 72 united kingdom north buil d in g , wal d en c ourt parsona g e lane, bishop?s s tortfor d hertfor d shire, c m23 5db unite d kin gd om phone: +44 1279 714170 fax: +44 1279 714171 india #208(a), nirmala plaza, airport roa d , forest park s quare bhu b aneswar 751009 in d ia phone: +91 ( 6 74) 6 53-4815 fax: +91 ( 6 74) 259-5733 snowbush ip - a division of gennum 439 university ave. s uite 1700 toronto, ontario m5 g 1y8 c ana d a phone: +1 (41 6 ) 925-5 6 43 fax: +1 (41 6 ) 925-0581 e-mail: sales@snow b ush. c om we b s ite: http://www.snow b ush. c om mexico 288-a paseo d e maravillas j esus ma., a g uas c alientes mexi c o 20900 phone: +1 (41 6 ) 848-0328 japan kk s hinjuku g reen tower buil d in g 27f 6 -14-1, nishi s hinjuku s hinjuku-ku, tokyo, 1 6 0-0023 j apan phone: +81 (03) 3349-5501 fax: +81 (03) 3349-5505 e-mail: g ennum-japan@ g ennum. c om we b s ite: http://www. g ennum. c o.jp ta i w a n 6 f-4, no.51, s e c .2, keelun g r d . s inyi distri c t, taipei c ity 11502 taiwan r.o. c . phone: (88 6 ) 2-8732-8879 fax: (88 6 ) 2-8732-8870 e-mail: g ennum-taiwan@ g ennum. c om germany hain b u c henstra?e 2 80935 muen c hen (muni c h), g ermany phone: +49-89-35831 6 9 6 fax: +49-89-35804 6 53 e-mail: g ennum- g ermany@ g ennum. c om north america western region bayshore plaza 2107 n 1st s treet, s uite #300 s an j ose, c a 95131 unite d s tates phone: +1 (408) 392-9454 fax: +1 (408) 392-9427 e-mail: naw_sales@ g ennum. c om north america eastern region 4281 harvester roa d burlin g ton, ontario l7l 5m4 c ana d a phone: +1 (905) 6 32-299 6 fax: +1 (905) 6 32-2055 e-mail: nae_sales@ g ennum. c om korea 8f j innex lakeview bl dg . 6 5-2, ban g i d on g , s on g pa g u s eoul, korea 138-828 phone: +82-2-414-2991 fax: +82-2-414-2998 e-mail: g ennum-korea@ g ennum. c om document identification product brief the product is in a development phase a nd specifications are subject to change without notice. gennum reserves the right to remove the product at any time. listing the product does not constitute an offer for sale. GS2972 3gb/s, hd, sd sdi transmitter product brief 44723 - e june 2008 4 of 4 4 g ennum c orporation assumes no lia b ility for any errors or omissions in this d o c ument, or for the use of the c ir c uits or d evi c es d es c ri b e d herein. the sale of the c ir c uit or d evi c e d es c ri b e d herein d oes not imply any patent li c ense, an d g ennum makes no representation that the c ir c uit or d evi c e is free from patent infrin g ement. all other tra d emarks mentione d are the properties of their respe c tive owners. g ennum an d the g ennum lo g o are re g istere d tra d emarks of g ennum c orporation. ? c opyri g ht 2007 g ennum c orporation. all ri g hts reserve d . www. g ennum. c om gennum corporate headquarters 4281 harvester roa d , burlin g ton, ontario l7l 5m4 c ana d a phone: +1 (905) 6 32-299 6 fax: +1 (905) 6 32-2055 e-mail: c orporate@ g ennum. c om www. g ennum. c om caution ele c tro s tati c s en s itive devi c e s do not open pa c ka g e s or handle ex c ept at a s tati c -free work s tation
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