Product Summary

The WM8731LS 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 WM8731LS include: (1)Portable MP3 Players and Recorders, CD and Minidisc Recorders, PDAs/smartphones.

Parametrics

WM8731LS absolute maximum ratings: (1)Digital supply voltage: -0.3V to +3.63V; (2)Analogue supply voltage: -0.3V to +3.63V; (3)Voltage range digital inputs: DGND -0.3V to DVDD +0.3V; (4)Voltage range analogue inputs: AGND -0.3V to AVDD +0.3V; (5)Operating temperature range, TA -25℃ to +85℃; (6)Storage temperature after solderin: g: -65℃ to +150℃.

Features

WM8731LS features: 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

WM8731LS pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
WM8731LSEFL
WM8731LSEFL
Wolfson Microelectronics
Audio CODECs Stereo Codec with H/P
Data Sheet
0-1: $1.67
1-25: $1.45
25-100: $1.16
100-500: $1.09
WM8731LSEFL/R
WM8731LSEFL/R
Wolfson Microelectronics
Audio CODECs STEREO CODEC w/ HP 28-pin
Data Sheet
0-1: $1.72
1-50: $1.49
50-100: $1.19
100-500: $1.12