WM8721中文資料歐勝微電子數(shù)據(jù)手冊(cè)PDF規(guī)格書

productfeatures

> 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? 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

? 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

> temperature range :: –10°C to +70°C

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