Product Summary

The WM8731SEDS is a low power stereo CODEC with an integrated headphone driver. The device is designed specifically for portable MP3 audio and speech players and recorders. It is also ideal for MD, CD-RW machines and DAT recorders. The applications of the WM8731SEDS include: (1)Portable MP3 Players and Recorders; (2)CD and Minidisc Recorders; (3)PDAs / smartphones.

Parametrics

WM8731SEDS absolute maxing ratings: (1)Digital supply voltage: min=-0.3V, max=+3.63V; (2)Analogue supply voltage: min=-0.3V, max=+3.63V; (3)Voltage range digital inputs: min=DGND -0.3V, max=DVDD +0.3V; (4)Voltage range analogue inputs: min=AGND -0.3V, max=AVDD +0.3V; (5)Operating temperature range, min=TA -25℃, max=+85℃; (6)Storage temperature after soldering: min=-65℃, max=+150℃.

Features

WM8731SEDS features: (1)Highly Efficient Headphone Driver; (2)Audio Performance: ADC SNR 90dB (A weighted) at 3.3V, 85dB at 1.8V; DAC SNR 100dB (A weighted) at 3.3V, 95dB at 1.8V; (3)Low Power: Playback only 22mW, 8mW (L Variant); Analogue Pass Through 12mW, 3.5mW (L variant); 1.42-3.6V Digital Supply Operation; 2.7-3.6V Analogue Supply Operation; 1.8-3.6V Analogue Supply Operation (L Variant); (4)ADC and DAC Sampling Frequency: 8kHz-96kHz; (5)Selectable ADC High Pass Filter; (6)2 or 3-Wire MPU Serial Control Interface; (7)Microphone Input and Electret Bias with Side Tone Mixer; (8)Available in 28-lead SSOP or 28-lead QFN package.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
WM8731SEDS
WM8731SEDS
Wolfson Microelectronics
Audio CODECs Stereo Codec with H/P
Data Sheet
Negotiable 
WM8731SEDS/R
WM8731SEDS/R
Wolfson Microelectronics
Audio CODECs Stereo CODEC with H/P
Data Sheet
0-2000: $1.10
2000-4000: $1.06
WM8731SEDS/V
WM8731SEDS/V
Wolfson Microelectronics
Audio CODECs Stereo Codec with H/P
Data Sheet
0-1: $1.85
1-50: $1.61
50-100: $1.28
100-500: $1.21
WM8731SEDS/RV
WM8731SEDS/RV
Wolfson Microelectronics
Audio CODECs Stereo Codec w-H/P
Data Sheet
0-2000: $1.16
2000-4000: $1.10
4000-6000: $1.06