WM8731SEDS/R Datasheet PDF - Wolfson Microelectronics

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