WM9701ACFTSLASHV datasheet(1/24 Pages) WOLFSON

部件名	WM9701ACFT/V

功能描述	Low Power AC97 Multimedia Audio Codec

PDF	24 Pages

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制造商	WOLFSON [Wolfson Microelectronics plc]

网页	http://www.wolfsonmicro.com

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WM9701A

Low Power AC’97 Multimedia Audio Codec

Production Data, January 2001, Rev 3.2

WOLFSON MICROELECTRONICS LTD.

Lutton Court, Bernard Terrace, Edinburgh, EH8 9NX, UK

Tel: +44 (0) 131 667 9386

Fax: +44 (0) 131 667 5176

Email: sales@wolfson.co.uk

http://www.wolfson.co.uk

Production Data datasheets contain final

specifications current on publication date.

Supply of products conforms to Wolfson

Microelectronics’ Terms and Conditions.

 2001 Wolfson Microelectronics Ltd

.

DESCRIPTION

The WM9701A is a high-quality stereo audio codec compliant

with the Intel AC’97 Rev 1.03 specification. Forming the

analogue component PC audio solution, it performs full-duplex

18-bit codec functions at 48 ksamples/s and offers excellent

audio quality with high SNR.

In addition, the WM9701A provides a comprehensive analogue

mixer with 4 sets of stereo inputs, plus phone, 2 microphone,

and PC-beep inputs. On-chip reference circuits generate the

necessary bias voltages for the device, and a 5-pin digital bi-

directional serial interface allows transfer of control data and

DAC and ADC words to and from the AC’97 controller.

The WM9701A is particularly suited to low power applications

such as notebook PCs.

FEATURES

•

3.3V or 5V operation

•

18-bit stereo codec

•

S/N ratio > 95dB

•

Multiple stereo input mixer

•

Mono and stereo volume control

•

48-pin TQFP package

•

Power management features

•

Very low standby power

APPLICATIONS

•

Notebook PC

•

PC sound cards

•

Motherboards

BLOCK DIAGRAM

LINEIN (23,24)

VIDEO (16,17)

PCBEEP (12)

VOL/

MUTE

VOL/

MUTE

VOL/

MUTE

VOL/

MUTE

VOL/

MUTE

Σ

VOL/

MUTE

Σ

(37) MONOOUT

(35,36) LINEOUT

Σ

CD (18,20)

AUX (14,15)

PHONE (13)

MIC[1] (21)

MIC[2] (22)

0dB/

20dB

(6) BITCLK

(10) SYNC

(8) SDATAIN

(5) SDATAOUT

(11) RESETB

OSC

(2) XTLIN

(3) XTLOUT

VOL/

MUTE

STEREO

DAC

Σ

VOL

STEREO

ADC

VOL/

MUTE

MUX

VOL/

MUTE

VOL/

MUTE

MUX

KEY:

MONO

STEREO

RECORD

MUX

AND

MUTE

SERIAL

I/F

WM9701A

类似零件编号 - WM9701ACFT/V

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