WM8731SEDS

wm8731SEDS

DESCRIPTION

The WM8731 or WM8731L WM8731/L are low power stereo CODECs with an integrated headphone driver. The WM8731/L is designed specifically for portable MP3 audio and speech players and recorders. The WM8731 is also ideal for MD, CD-RW machines and DAT recorders.

FEATURES

• Highly Efficient Headphone Driver

•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

•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

• ADC and DAC Sampling Frequency: 8kHz – 96kHz

• Selectable ADC High Pass Filter

• 2 or 3-Wire MPU Serial Control Interface

• Programmable Audio Data Interface Modes

\- I2S, Left, Right Justified or DSP

-  16/20/24/32 bit Word Lengths

-  Master or Slave Clocking Mode

• Microphone Input and Electret Bias with Side Tone Mixer

• Available in 28-lead SSOP or 28-lead QFN package

APPLICATIONS

• Portable MP3 Players and Recorders

• CD and Minidisc Recorders

• PDAs / smartphones