CMI9738 Datasheet, PDF (3/36 Pages) List of Unclassifed Manufacturers – Integrated Multi-channel AC97

CMI 9738
Integrated Multi-channel AC‘97
CMI9738 Mixer Block Diagram
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
ŠSystem audio digital PCM input and output for business, games, and multimedia
ŠCD/DVD analog CD/DVD-ROM Redbook audio with internal connections to Codec mixer
ŠMono microphone choice of desktop or headset mic, with programmable boost and gain
ŠSpeakerphone use of system mic & speakers for telephony, DSVD, and video
conferencing
ŠStereo line in analog external line level source from consumer audio, video camera, etc
ŠAUX/synth analog FM or wavetable synthesizer, or other internal source
SOURCE
FUNCTION
MIC1
desktop microphone
LINE_IN
external audio source
CD
audio from CD-ROM drive
AUX
upgrade synth or other external source
PCM out digital audio output from AC '97 Controller
Mix out
mix of all sources
LINE_OUT stereo mix of all sources (front channel)
REAR_OUT stereo output of rear (surround) channel
PCM in
digital audio input to AC '97 Controller
CONNECTION
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
C-MEDIA Electronics Inc.
6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan, R.O.C. 106
TEL: [phone] FAX: [phone] E-mail:[e-mail]
OUTPUT MIX SUPPORTS:
•stereo mix of all sources for LINE_OUT
•stereo output for REAR_OUT
INPUT MUX SUPPORTS:
•any mono or stereo source
•mono or stereo mix of all sources
Revision Date Apr./2002
Revision 1.1