Digchip : Database on electronics components
Electronics components database



Details, datasheet, quote on part number: CMI9738_4CH
 
 
Part numberCMI9738_4CH
CategoryMultimedia => Audio => Codecs => AC97 Codec
DescriptionAC'97 Codec
CompanyC-Media Electronics (CMEI)
DatasheetDownload CMI9738_4CH datasheet
 


 
Specifications, Features, Applications

Specification

Versatility 4CH AC97 CODEC, applicable for currently mainstream MB chipsets of Intel, VIA, Ali, and SIS. CMI9738 is ideal for PC2001-compliant desktops, notebooks, and home entertainment PCs where high-quality audio is a must. 4CH Playback The specially-designed 4CH hardware architecture of CMI9738 allows all types of south bridge to playback 4CH audio, thus helping commonplace south bridge get rid of the limitation of 2CH audio playback capability (patent pending both in Taiwan and United States). Cost-effectiveness As to the cost concern, CMI9738 integrates the earphone buffer, analog CD differential interface, and analog switch for rear channel audio to Line-in. Simply by using 0.1uf decoupling capacitor, CMI9738 meets PC2001 frequency response requirements. packaging option, CMI9738 also offers SOP 24pin packaging, which helps to further cut the cost. More Audio Option Last but not least, CMI9738 provides Sensaura® 3D audio option. beyond general expectation. In that regard,

Features

Intel AC'97 Rev 2.2 compatible AC-Link Protocol compliance Full-Duplex Codec Earphone Buffer Line-in/rear out share jack capability 4 channels DAC 48 LQFP Package and 24-Lead TSSOP Package Meet Microsoft's PC2001 requirements Sensaura® 3D Enhancement(optional)

C-MEDIA Electronics Inc. 6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan, R.O.C. 106 TEL: 886-2-8773-1100 FAX: 886-2-8773-2211 E-mail:sales@cmedia.com.tw

DVdd1 XTL_IN XTL_OUT DVss1 SDATA_OUT BIT_CLK DVss2 SDATA_IN DVdd2 SYNC RESET# NC
LINE_IN_R LINE_IN_L NC MIC1 CD_R CD_GND CD_L NC AUX_IN_R AUX_IN_L NC
SDATA_IN SYNC RESET# AUX_IN_L AUX_IN_R CD_L CD_GND CD_R MIC1 LINE_IN_L LINE_IN_R VREF_OUT
BIT_CLK SDATA_OUT XTL_OUT XTL_IN DVsdd Vss TEST0# AVdd LINE_OUT_R LINE_OUT_L XADCHR XADCHL

PIN Signal Name DVdd1 XTL_IN XTL_OUT DVss1 SDATA_OUT BIT_CLK DVss2 SDATA_IN DVdd2 SYNC RESET# NC AUX_IN_L AUX_IN_R NC CD_L CD_GND CD_R MIC1 NC LINE_IN_L LINE_IN_R PIN Signal Name AVss1 NC Vrefout AFILT2 NC LINE_OUT_L LINE_OUT_R NC AVdd2 REAR_OUT_L TEST0# REAR_OUT_R AVss2 NC RESERVED NC

PIN Signal Name SDATA_IN SYNC RESET# AUX_IN_L AUX_IN_R CD_L CD_GND CD_R MIC1 LINE_IN_L LINE_IN_R VREF_OUT AFILT1 AFILT2 LINE_OUT_L LINE_OUT_R AVdd TEST0# Vss DVsdd XTL_IN XTL_OUT SDATA_OUT BIT_CLK


The CMI9738 mixer is designed to the AC'97 specification to manage playback and record of all digital and analog audio sources in the PC environment. These include¡G System audio¡G digital PCM input and output for business, games, and multimedia CD/DVD¡G analog CD/DVD-ROM Redbook audio with internal connections to Codec mixer Mono microphone¡G choice of desktop or headset mic, with programmable boost and gain Speakerphone ¡G use of system mic & speakers for telephony, DSVD, and video conferencing Stereo line in¡G analog external line level source from consumer audio, video camera, etc AUX/synth¡G

analog FM or wavetable synthesizer, or other internal source
desktop microphone external audio source audio from CD-ROM drive

from mic jack from line in jack cable from CD-ROM internal connector AC-link AC `97 internal to output jack to output jack AC-link

upgrade synth or other external source digital audio output from AC '97 Controller mix of all sources stereo mix of all sources (front channel) stereo output of rear (surround) channel digital audio input AC '97 Controller

·any mono or stereo source·mono or stereo mix of all sources



Some Part number from the same manufacture C-Media Electronics (CMEI)
CMI9739_6CH AC'97 Codec
CMI9761_6CH
CM102S+ USB 2CH Audio Controller for Speaker
CM220S Updateable Usb2.0 Card Reader Controller
CM220
CM103+ 16-bit Stereo USB Audio Controller
CMI8787 High Performance PCI Audio Processor
NITROGEND2 16-bit Stereo USB Audio Controller
CM102-A+ USB 2CH Audio Controller for Speaker
P232-DEA20AR100K 24mm Rotary Potentiometer Sealed/ Dust Proof Long Life Element 2 Million Cycle Life Metal Shaft/ Bushing RoHS Compliant