FEATURES

•  Audio Performance
  - 90dB SNR (‘A’ weighted @ 48kHz) ADC
  - 100dB SNR (‘A’ weighted @ 48kHz) DAC
  - 2.7 - 3.6V Digital Supply Operation
  - 2.7 - 3.6V Analogue Supply Operation
• 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
  -  6/20/24/32 bit Word Lengths 
  - Master or Slave Clocking Mode 
• Stereo Audio Inputs and Outputs 
• 20-lead SSOP or 5x5mm QFN Package Options

The WM8734 is a low power stereo CODEC ideal for MD, CD-RW machines and DAT recording applications. 

Stereo line inputs are provided, along with a mute function and programmable line level volume control. 

Stereo 24-bit multi-bit sigma delta ADCs and DACs are used with oversampling digital interpolation and decimation filters. 

Digital audio input word lengths from 16-32 bits and sampling rates from 8kHz to 96kHz are supported. 

Stereo audio line level outputs are provided along with anti-thump mute and power up/down circuitry. 

The device is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including level controls, mutes, de-emphasis and power management facilities. The device is available in 20-lead SSOP or 28-lead, 5x5mm QFN packages.