WM8721_01 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc
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componentes Descripción
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WM8721_01 Datasheet PDF : 2 Pages
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portable digital audio solutions
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WM8711 WM8721 WM8731
www.wolfsonmicro.com
productfeatures
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> 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 16Ω 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
usb headsets
palm tops /
web browsers
> 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
» i2s, left/right justified or dsp modes
» 16/20/24/32-bit word lengths
» master or slave clocking mode
> 2 or 3-wire serial control interface
mp3
players /
recorders
digital camcorders
> temperature range :: –10°C to +70°C
mobile
phones
with mp3
mobile
information
devices
digital still cameras
orderinginformation
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part number
WM8711EDS
WM8711LEDS
WM8721EDS
WM8721LEDS
WM8731EDS
WM8731LEDS
voltage supply
standard
low
standard
low
standard
low
standard
pack quantity
47
47
66
66
47
47
package
SSOP-28
SSOP-28
SSOP-20
SSOP-20
SSOP-28
SSOP-28
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
WORLD Headquarters
Wolfson Microelectronics Ltd
Bernard Terrace
Edinburgh
EH8 9NX UK
Tel: +44 131 667 9386
Fax: +44 131 667 5176
wolfson microelectronics :: direct sales offices
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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