wm9703 ETC-unknow, wm9703 Datasheet
wm9703
Manufacturer Part Number
wm9703
Description
Manufacturer
ETC-unknow
Datasheet
1.WM9703.pdf
(30 pages)
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.
BLOCK DIAGRAM
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
LINEIN (23,24)
VIDEO (16,17)
PCBEEP (12)
PHONE (13)
AUX (14,15)
MIC[1] (21)
MIC[2] (22)
CD (18,20)
MUX
KEY:
20dB
0dB/
STEREO
MONO
MUTE
MUTE
VOL/
VOL/
MUTE
MUTE
MUTE
MUTE
MUTE
VOL/
VOL/
VOL/
VOL/
VOL/
3D
RECORD
MUTE
MUX
AND
AC’97 FEATURES
AC’97 REVISION 2.1 FEATURES
MUTE
MUTE
VOL/
VOL/
VOL
VOL
AC’97 Revision 2.1 Audio Codec
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
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
MUX
WM9703
STEREO
STEREO
DAC
ADC
MUTE
VOL/
Production Data datasheets contain final
SRC
SRC
specifications current on publication date.
Microelectronics’ Terms and Conditions.
Supply of products conforms to Wolfson
Production Data, January 2001, Rev 3.4
MASTER/
SELECT
SERIAL
SLAVE
OSC
I/F
2001 Wolfson Microelectronics Ltd
(35,36) LINEOUT
(39,41) LNLVLOUT
(37) MONOOUT
(47) EAPD
(6) BITCLK
(10) SYNC
(8) SDATAIN
(5) SDATAOUT
(11) RESETB
(45) CID[0]
(46) CID[1]
(2) XTLIN
(3) XTLOUT
WM9703
.
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