mobile

phones

with mp3

palm tops /

web browsers

mp3

players /

recorders

digital camcorders

www.wolfsonmicro.com

wolfson microelectronics :: direct sales offices

WORLD Headquarters

Wolfson Microelectronics Ltd

Bernard Terrace

Edinburgh

EH8 9NX UK

Tel: +44 131 667 9386

Fax: +44 131 667 5176

USA Sales Office

Wolfson Microelectronics Ltd

111 North Market Street

Suite 670 San Jose

CA 95113 USA

Tel: +1 408 279 2882

Fax: +1 250 746 4186

ASIA PACIFIC Sales Office

Wolfson Microelectronics Ltd

9F-1 No 6 Lane 180

Min-Chiuan East Road

Sec 6 Taipei Taiwan RoC

Tel: +886 2 2792 5775

Fax: +886 2 8791 8590

©

Copyright 2001, Wolfson Microelectronics Ltd. Wolfson and

are registered trademarks of Wolfson Microelectronics Ltd. All other trademarked names are the property of their respective owners.

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productfeatures

part number

voltage supply

standard

package

pack quantity

WM8711EDS

standard

47

SSOP-28

WM8711LEDS

low

47

SSOP-28

WM8721EDS

standard

66

SSOP-20

WM8721LEDS

low

66

SSOP-20

WM8731EDS

standard

47

SSOP-28

WM8731LEDS

low

47

SSOP-28

------------------------------------------------------------------------

orderinginformation

> cd quality audio performance

» dac 100dB snr, 88dB thd (‘A’ weighted @ 48kHz)

» adc 97dB snr, 85dB thd (WM8731 only)

> independent stereo line and headphone outputs

» headphone output power: 40mW on 16

Ω load

» volume and mute controls

> low supply voltage

» 1.42 – 3.6V digital supply

» 1.8 – 3.6V analogue supply for low-voltage parts

»

2.7 – 3.6V analogue supply for standard parts

> very low power

» playback only: 9mW @ 1.8V, 18mW @ 3.3V

» simultaneous playback & record: 18mW @ 1.8V, 36mW @ 3.3V

» standby: 30µW

> programmable sample rates :: 8, 32, 44.1, 48, 88.2, 96kHz

> on-chip clock generator (WM8711 and WM8731 only)

> programmable audio data interface

» 16/20/24/32-bit word lengths

» master or slave clocking mode

> 2 or 3-wire serial control interface

> temperature range :: –10°C to +70°C

------------------------------------------------------------------------------------

portable digital audio solutions

WM8711 WM8721 WM8731

productapplications

>

mp3 players and recorders

>

mobile information devices

>

palmtops

>

web browsers

>

mobile phones with mp3

>

digital camcorders and cameras

>

usb headsets

>> all battery powered systems incorporating digital audio

mobile

information

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