CMI9761A Datasheet, PDF (6/23 Pages) List of Unclassifed Manufacturers – C-Media CMI9761A / 9761A+ 6 Channel AC97 2.3 Audio Codec

CMI9761A/9761A+ DataSheet
2004/02/09, Rev 1.2
2. Features
Basic features:
6 channel, 16-bits DACs with SNR > 90 dB.
2 channel, 16-bits ADCs with SNR > 85 dB.
New features of AC’97 2.3 codec:
Digital PC Beep support.
2 Stereo microphone support.
Extensive jack detection via proprietary resistors network method
that can monitor plugging status of every jack.
Precise advanced impedance sensing function for audio device
class discoverability.
Miscellaneous features:
Compliant with Intel^® AC’97 Rev 2.3 Spec.
Meeting with Microsoft^® PC2001 requirements
Built-in 14.318MHz to 24.576MHz PLL, which can save the BOM
cost of external crystal.
Advanced power management and power saving capabilities.
Industry standard 48-lead LQFP package.
Analog power supply is 5V, digital power supply is 3.3V.
Versatile I/O & functionalities support:
Stereo Line-in function shared with Surround out.
Stereo Microphone function shared with Center/LFE out.
High quality pseudo-differential analog CD Audio input.
Dual analog & digital PC BEEP support.
AUX legacy analog I/O support.
2 GPIO (General Purpose I/O) support.
EAPD (External Amplifier Power Down) support.
S/PDIF I/O function:
Output: 96 / 48 kHz with 24 / 20 / 16 bits
Input: 48 / 44.1 / 32 kHz with 20 / 16 bits
S/PDIF In is featured with interrupt, auto-lock, anti-noise, and
anti-distortion functionalities support.
Copyright 2003-2004 © C-Media Electronics Inc.
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