Audio Codec 2ADC /2 DAC 24-Bit 28-Pin SSOP

The WM8731 is a low power stereo codecs with an integrated headphone driver. The WM8731 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.

• Stereo Audio Codec with Integrated Headphone Driver (50mW on 16W @ 3.3V)
• 1.42 – 3.6V Digital Supply
• 2.7 – 3.6V analog Supply (standard)
• 1.8 – 3.6V analog Supply (’L’ version)
• Playback Mode Power Consumption < 18mW
• 100dB SNR (‘A’ weighted @ 48kHz) DAC
• 90dB SNR (‘A’ weighted @ 48kHz) ADC
• Sampling Frequency: 8kHz – 96kHz
• Master or Slave Clocking Mode
• USB clocking mode can generate all common MP3 sample rates (incl. 441.kHz) directly from USB clock
• Output Volume and Mute Controls
• Microphone Input and Electret Bias with Side Tone Mixer
• Selectable ADC High Pass Filter
• 2 or three-wire MPU Serial Control Interface
• Programmable Audio Data Interface Modes
• 28-Pin SSOP Package