STAC9704 datasheet(24/49 Pages) HYNIX

tên linh kiện	STAC9704

Giải thích chi tiết về linh kiện	Multimedia Audio Codec for AC97

PDF	49 Pages

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nhà sản xuất	HYNIX [Hynix Semiconductor]

Trang chủ	http://www.skhynix.com/kor/main.do

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24 / 49 page

SigmaTel, Inc.

STAC9704/7

10/02/98

4.1 Mixer Input

The mixer provides recording and playback of any audio sources or output mix of all sources. The

STAC9704/7 supports the following input sources:

•

any mono or stereo source

•

mono or stereo mix of all sources

•

2-channel input w/mono output reference (mic + stereo mix)

Note: any unused input pins must have a capacitor (1 uF suggested) to ground.

4.2 Mixer Output

The mixer generates two distinct outputs:

•

a stereo mix of all sources for output to the LINE_OUT

•

a stereo mix of all sources for output to the LNLVL_OUT

•

a mono, mic only or mix of all sources for MONO_OUT

* Note: Mono output of stereo mix is attenuated by 6 dB.

4.3 PC Beep Implementation

PC Beep is active on power up and defaults to an unmuted state. During active RESET#, PC_BEEP is

passed through the codec to LINE_OUT. The user should mute this input before using any other mixer

input because the PC Beep input can contribute noise to the lineout during normal operation.

STAC9704 bảng dữ liệu(PDF) 24 Page - Hynix Semiconductor