View CM8828_9031642.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 1 /23 block diagram features ? compatible with pci express 1.1 interface with bus mastering and burst modes ? embedded an 8051 - based mcu to transcode hd audio command s (an external 4 o r 8kb serial eeprom is required bu ild in hd audio controller . a udio format supports 1 92k/ 176.4k/ 96k / 88.2k/48k/44.1k and 16/24 bits resolution ? inte grated 192k/ 176.4k/ 96k/88.2k/48k/44.1k, a nd 16/24 - bit s/pdif transmitter /receiver ? supports spi/i2c control interface ? 24.576mhz crystal input required with embedded pll for adaptive clock rate ? win7 /8 whql compatible description the oxygen express ? hd CM8828 is a high quality pci express multi - channel audio processor that not only an intel hd audio specification compatible audio single chip, but also can be a controller which can link hda codec. CM8828 can be built in the home audio electronics or personal computer to provide high fidelit y sound and become a professional audio processing center in your life. it supports up to 1 0 outgoing channels and 6 ingoing channels. the 1 0 outgoing channels are composed of 2 playback dma?s, which are multi - channel dma ( 24 bits, 8 channels, 192k), headp hone out & s/pdif (each 24 bits, 2 channels, 192k), and rtc (real - time communication) dma ( 24 bits, 2 channels, 192k). the 6 ingoing channels are spread in 3 recording dma?s ( up to 24 bits, 192k) . block diagram
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 2 /23 table of contents revision history ....................................................................................................................................... 3 1. description and overview ................................................................................................................ 4 2. features ............................................................................................................................................ 5 3. applications ..................................................................................................................................... 7 4. software and features ...................................................................................................................... 7 5. block diagram ................................................................................................................................. 8 6. pin assignment ................................................................................................................................. 9 6.1 pin - out diag ram ........................................................................................................... 9 7. electrical characteristics ................................................................................................................ 14 7.1 maximum ratings ....................................................................................................... 14 7.2 recommended operation conditions ......................................................................... 14 7.3 power consumption .................................................................................................... 14 7.4 dc characteristics ....................................................................................................... 14 7.5 ac timing characteristics .......................................................................................... 15 7.5.1 i2s signal timing ................................................................................................... 15 7.5.2 co ntrol interface timing - 3 - wire mode ............................................................. 16 7.5.3 eeprom interface timing .................................................................................... 18 7.5.4 eeprom ac timing characteristics .................................................................... 19 7.5.5 hd audio - link timing characteristics: ................................................................ 20 8. mechanical specification ............................................................................................................... 22
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 3 /23 revision history date rev. release note 201 1/ 11/11 rev . 0. 9 first release - modify 3.3v power range - add power consumption data 2012/ 0 5/ 0 7 rev. 0.95 - modify pin definition table - modify block diagram - modify software and features 2013/09/13 re v. 1 . 0 formal release
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 4 /23 1. description and overview the oxygen express ? hd CM8828 is a high quality pci express multi- channel audio processor that not only an intel hd audio specification compatible audio single chip, but also can be a controller which can connect hda codec. CM8828 can be built in the home audio electronics or personal computer to provide high fide lity sound and become a professional audio processing center in your life. it supports up to 1 0 outgoing channels and 6 ingoing channels. the 1 0 outgoing channels are composed of 2 playback dma?s, which are multi - channel dma ( 24 bits, 8 channels, 192k), headphone out & s/pdif dma (each 24 bits, 2 channels, 192k). the 6 ingoing channels are spread in 3 recording dma?s ( up to 24 bits, 192k) . the oxygen express ? hd CM8828 is a mcu - based audio processor which can co - work with all the usual hda codecs. the au dio topology for hda spec. can be flexible by only changing the firmware. this ability gives customers the flexibility to design their products. the hda - link, 2- wire master bus, and spi interfaces are used to transfer audio data and control data between th e CM8828 and codecs. to facilitate the connection with the existing home audio electronics, the CM8828 has incorporated the s/pdif transmitter with 192k sampling rate in it. a mast er i2c interface is built in to connect with the serial eeprom to store and retrieve the non- evaporable data for firmware code and the customer applications, such as board configuration, sub - vender and sub - system ids, or any dynamic data that customers want to save for the next power - on to rest ore. the oxygen express ? hd CM8828 has an independent 2- wire slave bus to communicate with micro control unit (mcu). strictly speaking, this interface is used as a media for system driver and mcu to talk. there are nine gpi os pins, which can be used to distinguish if a device is plugged in the phone jack or other purpose .
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 5 /23 2. features bus ? compatible with pci express 1.1 interface with bus mastering and burst modes architecture ? build in hd audio controller ? embedded an 8051 - based mcu to transcode hd audio command to accommodate various external hda codecs (an external 4 or 8kb serial eeprom is required] ? embedded rom code for mcu to transcode hd audio command to control embedded hd a codecs ? analog mixer to mix all input data to output streams through hd a codecs dma controller ? three playback dmas and three recording dmas following vista /win7 hd audio controller requirements and to be wavert - port - friendly: ? playback dma#a supports up to 8ch audio output (2,4,6,8ch configurable by sw driver contr ol) ? playback dma# b supports independent 2ch audio output (e.g. front headphone out) or s/pdif ? recording dma#a supports up to 2 ch audio input ? recording dma#b supports independent 2ch audio input ? recording dma#c supports independent 2ch audio input (for s/pdif input stream or other purpose) ? sampling rates: all dma chann els support: 192k/ 176.4k/ 96k/88.2k/48k/44.1k pcm data ? resolution (word - length): all dma channels support: 16/24bit pcm data transfer modes audio i/o ? intel hd audio link supports 1 external hda codec ? integrated 192k/ 176.4k/ 96k/88.2k/48k/44.1k , and 16/24 - bit s/pdif transmitter
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 6 /23 ? all input data can be analog mixed to output streams control interface ? spi control interfaces ? i 2 c interface supports both master and slave mode ? i nterrupt pin for external mcu read transaction ? serial eeprom programming interface for customizing sub - vendorid/sub - deviceid (and even vendor/device ids as well), storing hda power - on pin configuration (replacing mb bios function) and 8051 rom - codes (hda command tr anscoder) ? maximum 9 gpio pins for external devices control and various purposes general ? compliant with microsoft win7 /8 uaa design guideline and driver ? p ass windows 7 a udio logo certification ? 24.576mhz crystal input required with embedded pll for adaptive clock rate ? single 3.3v power supply ? 3.3 v digital i/o pads with 5v tolerance ? package and pin number: l qfp - 80 ? default target codec : cm9882a ?
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 7 /23 3. applications ? high definition pcie sound cards for ret a iler market ? pro - audio / high - end studio applications ? gaming audio devices ? bundle selling with high - profile vga cards or motherboard ? embedded system / industrial computer audio 4. software and features ? xear ? living 1.1 ? xear ? voclear ? xear ? sonic ? xear ? surround ? xear ? pro 1.0 ? xear ? singfx ? xear ? magicvoice ? face lift ui (including customizable graphics and layout) ? stereo mix (line - in, mic - in and wave files)
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 8 /23 5. block diagram figure 1. block diagram of oxygen tm express cm 8 828
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 9 /23 6. pin assignment 6.1 pin - o ut diagram 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 60 59 58 57 56 55 54 53 52 51 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 50 49 48 47 46 45 44 43 42 41 n.c n.c gnd n.c n.c n.c n.c dvcc n.c n.c n.c gnd xspi_ clk xspi_din xspi_dout xspi_cen0 xspi_cen1 xspi_cen2 xspi_cen3 xspdifo _0 cm 8828 lqfp-80 vddrx hsip hsin gndrx refclk _p refclk _n vddtx hsop hson gndpll v_mbias ibref g_ mbias vdd18 dvcc gnd vdd18 v3d3_pll xhda_sdo xhda_bclk xsco _0 gnd xosc 49 xosc 45 xgpio _3 xgpio _2 xgpio _1 xgpio _0 xtest xperstn xspi_cen4 xspi_cen7 xhda_rstn xhda_sync xhda_sdi dvcc xsci_0 xspi_cen5 xspi_cen6 dvcc n.c dvcc xgpio _8 xgpio _7 xgpio _6 dvcc n.c xmcu _int n.c n.c gnd n.c xpwdn xgpio _4 xgpio _5 vdd18 xmsda xmscl n.c xspdifi_0 figure 2. pin - o ut diagram of oxygen tm express CM8828
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 10/23 pin descriptions the following table gives the pin descriptions for the oxygen express tm hd CM8828 . the abbreviations used in the pin description table are explained below. di: digital input signal do: digital output signal dio: digital bidirectional signal ai: analog input pu: pull - up with 75k resistor pd: pull - down with 75k resistor #: low active signal table 5 .1 pin description table of oxygen experss tm hd CM8828 p in no. p in n ame type d escription 1 vdd r x p phy vdd 2 hsip ai phy signal 3 hsin ai phy signal 4 gnd r x g phy gnd 5 refclk_p ai phy signal 6 refclk_m ai phy signal 7 vdd pll / vdd tx p phy vdd 8 hsop ao phy signal 9 hso n ao phy signal 10 gndpll / gndtx g phy gnd 11 vddbias p phy vdd 12 ibref ao phy signal 13 gndbias g phy gnd 14 vdd18 p digital 1.8v power 15 dvcc p digital core power 16 gnd g digital ground 17 vdd18 p digital 1.8v power
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 11/23 18 dvcc p digital core power 19 xhda_sdo d o h d a serial data output to codec 20 xhda_bclk d o hda 24mhz serial clock output 21 xhda_sdi di o ,pd 1 st hda serial data input from codec 22 xhda_sync do hda frame synchronization 23 xhda_rstn d o hda codec reset 0 24 xspi_cen7 dio,p u spi chip enable, which select the codec #7 to be control l ed 25 xspi_cen6 dio,p u spi chip enable, which select the codec #6 to be control l ed 26 xspi_cen5 dio,p u spi chip enable, which select the codec #5 to be control l ed 27 xspi_cen4 dio,pu spi chip enable, which select the codec #4 to be contro l led 28 xperstn di ,pu pcie phy reset# 29 xtest di,p d test mode enable 30 dvcc p digital core power 31 xspdifi_0 di 1 st s/pdif input 3 2 xgpio_0 dio,p d gpio0, default input 3 3 xgpio_1 dio,p d gpio1, default input 3 4 xgpio_2 dio,p d gpio2, default input 3 5 xgpio_3 dio,p d gpio3, default input 3 6 xosc45 di,p d 45.1584 mhz osc in 3 7 xosc49 di ,pd 49.1520 mhz osc in 3 8 gnd g digital ground 3 9 xsco_0 di o 24.576 crystal out 40 xsci_0 dio 24.576 crystal in 4 1 dvcc p digital core power 4 2 gnd g digital ground 4 3 n.c 4 4 n.c
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 12/23 4 5 n.c 4 6 n.c 4 7 xmcu_int dio,pd 2 - wire serial bus inter r upt 48 n.c 49 dvcc p digital core power 50 xpwdn dio,pu codec reset (low active) 51 xgpio_4 dio,p d gpio4, default input 52 xgpio_5 dio,p d gpio5, default input 53 vdd18 p digital 1.8v power 54 xgpio_6 dio,p d gpio6, default input 55 xgpio_7 dio,p d gpio7, default input 56 xgpio_8 dio,p d gpio8, default input 57 dvcc p digital core power 58 xmsda dio,pu 2 - wire serial bus data 59 xmscl dio,pu 2 - wire serial bus clock 60 n.c 61 n.c 62 n.c 63 gnd g digital ground 64 n.c 65 n.c 66 n.c 67 n.c 68 dvcc p digital core power 69 n.c 70 n.c 71 n.c 72 gnd g digital ground 73 xspi_clk dio,pd spi clock output 74 xspi_din dio,pd spi data input 75 xspi_dout dio,pd s pi data output(master) / data input (slave) 76 xspi_cen0 dio,pu spi chip enable, which select the codec #0 to be controlled 77 xspi_cen1 dio,pu spi chip enable, which select the codec # 1 to be controlled
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 13/23 78 xspi_cen2 dio,pu spi chip enable, which select the codec # 2 to be controlled 79 xspi_cen3 dio,pu spi chip enable, which select the codec # 3 to be controlled 80 xspdifo_0 d o 1 st s/pdif transmitter
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 14/23 7. electrical characteristics 7.1 maximum ratings test conditions dvdd = 3.3v, dgnd =0v,ta =+25oc parameter symbol min typ max units storge temperature - -25 - +120 o c operating ambient temperature - 0 25 70 o c dc supply voltage (dvcc ) - 3. 1 3.3 3.6 v dc supply voltage ( vdd18 ) 1.62 1.8 1.98 v i/o pin voltage - gnd - v dd vrms power dissipation - - - w 7.2 recommended operation conditions test conditions dvdd = 3.3v, dgnd =0v,ta=+25 o parameter c symbol min typ max units dvdd input voltage range - v dd -0. 2 v dd v dd +0.3 vrms dvdd o utput voltage range - 0 - v dd vrms avdd input voltage range vavdd -5% vavdd vavdd+5% vrms 7.3 power c onsumption test conditions dvdd = 3.3v, dgnd =0v,ta=+25 o parameter c symbol min typ max units s upply current : power up - - 203 - ma s upply current : power down - - 0.2 - ua 7.4 dc characteristics test conditions dvdd = 3.3v, dgnd =0v,ta=+25oc parameter symbol min typ max units input voltage range vin v dd v - 0. 2 v dd dd v +0.3 o utput voltage range vout 0 - v v dd h igh level input voltage vih 0.7v - dd - v l ow level input voltage vil - - 0.3v v dd h igh level output voitage voh 2.4 - - v l ow level output voltage vol - 0.4 v i nput leakage current iil - 10 - 10 ua
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 15/23 o utput leakage current iol - 10 - 10 ua o utput buffer driver current - - 8 - ma spdif transmit output driver current - - 8 - ma 7.5 ac timing characteristics 7.5.1 i2s signal timing a. s ystem c lock t iming system clock timing diagram test conditions dvdd = 3.3v, dgnd =0v,ta=+25oc,fs=96khz,mclk=512fs,24 bit data,unless otherwise stated system clock timing parameters parameter symbol min typ max units mclk clock cycle time tmclk 20 - - ns mclk pulse width high tmclkh 10 - - ns mclk pulse width high tmclkl 10 - - ns mclk duty cycle 40 50 60 % b. a udio interface timing audio interface timing diagram test conditions dvdd = 3.3v, dgnd =0v,ta =+25oc,fs=96khz,mclk=512fs,24 bit data, unless otherwise stated audio interface timing parameters parameter symbol min typ max units
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 16/23 lrck propagation delay from bclk falling edge t dl 5 - - n s sdout propagation delay from bclk falling edge t dd 5 - - n s 7.5.2 c ontrol i nterface t iming - 3 - w ire m ode control interface timing - 3 - wire diagram note: latch data at xspi_cen clock low mode, xspi_cen clock can be low or high mode test conditions dvdd = 3.3v, dgnd =0v, ta= +25 o c, spi clock 160 ns , unless otherwise stated control interface timing - 3 - wire parameters parameter symbol min typ max units xspi_ clk rising edge to xspi_cen rising edge t scs 120 - - ns xspi_clk pulse cycle time t scy 160 - - ns xspi_clk pulse width low t scl 80 - - ns xspi_clk pulse width high t sch 80 - - ns xspi_dout to xspi_clk set - up time t dsu 40 - - ns xspi_dout to xspi_clk hold time t dho 40 - - ns xspi_cen rising to sclk rising t css 40 - - ns
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 17/23 c ontrol i nterface t iming - 2 ? w ire m ode control interface timing - 2 - wire diagram test conditions dvdd = 3.3v, dgnd =0v, ta=+25 o c , 2 wire , fast speed mode, unless otherwise stated control interface timing - 2 - wire parameters parameter symbol min typ max units xmscl frequency 400 - - khz xmscl pulse width low t1 650 - - ns xmscl pulse width high t2 1.3 - - us h old time (start condition) t3 650 - - ns s et - up time (start condition) t4 650 - - ns data set - up time t5 650 - - ns xmsdi,xmscl rise time t6 100 - - ns xmsdi,xmscl fall time t7 100 - - ns s et - up time (stop condition) t8 650 - - ns data hold time t9 650 - - ns note: test parameters at 2 wire , fast speed mode
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 18/23 7.5.3 eeprom i nterface timing eeprom interface timing diagram test conditions dvdd = 3.3v, dgnd =0v, ta=+25 o c, unless otherwise stated eeprom interface timing parameters parameter symbol min typ max units xeesk clock frequency tsk 555 - - khz xeesk high time tskh 900 - - ns xee s k low time tskl 900 - - ns xeecs setup time tcss 900 - - ns xeedi setup time tdis 900 - - ns xeecs hold time tcsh 900 - - ns xeedi hold time tdih 2 - - ns o utput delay to ? 1 ? tpd1 900 - - ns o utput delay to ? 0 ? tpd0 30 - - ns xeecs to status valid tsv 30 - - ns xeecs to xeedo in high impedance tdf 30 - - ns
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 19/23 7.5.4 eeprom ac timing characteristics symbol description min max units fsk sk clock frequency 0 0.5 mhz tskh sk high time 500 ns tskl sk low time 500 ns tcss cs setup time 100 ns tcsh cs hold time 0 ns tdis di setup time 200 ns tdih di hold time 200 ns tpd0 output delay to ? 0 ? 500 ns tpd1 output delay to ? 1 ? 500 ns tsv cs to status valid 500 ns tdf cs to do high impedance 200 ns
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 20/23 7.5.5 hd audio - l ink t iming c haracteristics: test conditions dvdd = 3.3v, dgnd =0v,ta=+25oc ,unless otherwise stated 1 link r eset and initialization timing link r eset and initialization timing parameters parameter symbol min typ max units reset#active low pulse width trst 1.0 - - us reset#inactive to bclk startup delay time for pll ready tpll 20 - - u s sdi initialization request time tframe - - 1 frametime 2 link timing parameters
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 21/23 link timing parameters parameter symbol min typ max units bclk frequency - - 24 - mhz bclk out period tcycle - 41.67 - ns bclk jitter - - - 2.0 n s bclk high,low level width t high /tlow 18.75 - 22.91 ns sdo setup time at rising,falling edge of bclk t setup 2.0 - - ns sdo hold time at rising,falling edge of bclk thold 2.0 - - ns sdi valid time after rising edge of bclk ttco - 7.5 - n s sdi flight time tflight - 2.0 - n s
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 22/23 8. mechanical specification 8.1 package dimension
oxygen tm express CM8828 high performance pci express audio processor www.cmedia.com.tw copyright ? c - media electronics inc. re v. 1.0 page 23/23 end of specifications c - media electronics inc. 6f., 100, sec. 4, civil boulevard, taipei, taiwan 106 r.o.c. tel + 886- 2 - 8773 - 1100 fax + 886 - 2 - 8773- 2211 e - mail sales@cmedia.com.tw disclaimer: information furnished by c - media electronics inc. is believed to be accurate and reliable. however, no responsibility is assumed by c - media electronics inc. for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change with out notice. no license is granted by implication or otherwise under any patent or patent rights of c - media. trademark and registered trademark are the property of their respective owners.

▲Up To Search▲

Price & Availability of CM8828

	To Download CM8828 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .