CMI9761A 데이터 시트보기 (PDF) - Unspecified

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CMI9761A

6 Channel AC’97 2.3 Audio Codec

Unspecified 

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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