WM9703CFTSLASHV datasheet(1/30 Pages) WOLFSON

部件名	WM9703CFT/V

功能描述	AC97 Revision 2.1 Audio Codec

PDF	30 Pages

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制造商	WOLFSON [Wolfson Microelectronics plc]

网页	http://www.wolfsonmicro.com

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WM9703

AC’97 Revision 2.1 Audio Codec

Production Data, January 2001, Rev 3.4

WOLFSON MICROELECTRONICS LTD

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

Tel: +44 (0) 131 667 9386

Fax: +44 (0) 131 667 5176Email: 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

WM9703 is a high-quality stereo audio codec compliant

with the AC’97 Revision 2.1 specification. It performs full

duplex 18-bit codec functions and supports variable

sample rates from 8 to 48k samples/s and offers excellent

quality with high SNR. Additional features include 3D

sound and line-level outputs. In addition, support is

provided for variable sample rates and accommodation is

made for master/slave mode operation.

WM9703 is interchangeable with AC’97 codecs from

Wolfson and other suppliers. The WM9703 is fully

operable on 3.3V or 5V or mixed 3.3/5V supplies, and is

packaged in the industry standard 48-pin TQFP package

with 7mm-body size.

AC’97 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

•

Low power implementation

•

Very low standby power

AC’97 REVISION 2.1 FEATURES

•

Variable rate audio (VRA) support

•

Analogue 3D stereo enhancement

•

Line level outputs

•

Supports Revision. 2.1 specified modem sample rates

and filtering

•

Master/slave ID selection

•

PC-beep connection when device held reset

BLOCK DIAGRAM

VOL/

MUTE

VOL/

MUTE

VOL/

MUTE

VOL/

MUTE

VOL/

MUTE

Σ

VOL/

MUTE

Σ

(37) MONOOUT

(39,41) LNLVLOUT

(35,36) LINEOUT

Σ

CD (18,20)

LINEIN (23,24)

VIDEO (16,17)

AUX (14,15)

PHONE (13)

PCBEEP (12)

MIC[1] (21)

MIC[2] (22)

0dB/

20dB

MASTER/

SLAVE

SELECT

(45) CID[0]

(46) CID[1]

(6) BITCLK

(10) SYNC

(8) SDATAIN

(5) SDATAOUT

(11) RESETB

(47) EAPD

VOL/

MUTE

OSC

(2) XTLIN

(3) XTLOUT

VOL

STEREO

DAC

SRC

3D

Σ

VOL

STEREO

ADC

SRC

VOL/

MUTE

MUX

VOL/

MUTE

VOL/

MUTE

MUX

KEY:

MONO

STEREO

RECORD

MUX

AND

MUTE

SERIAL

I/F

WM9703

类似零件编号 - WM9703CFT/V

制造商	部件名	数据表	功能描述
Wolfson Microelectronic...	WM9701	192Kb / 24P	Low Power AC97 Multimedia Audio Codec
	WM9701A	192Kb / 24P	Low Power AC97 Multimedia Audio Codec
	WM9701ACFT/V	192Kb / 24P	Low Power AC97 Multimedia Audio Codec
	WM9704CFT/V	270Kb / 37P	AMC97 Audio and Modem Codec
	WM9704CFT/V	271Kb / 35P	4-Channel Surround Sound Codec

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