DESCRIPTION

The WM8738 is a high performance stereo audio ADC designed for consumer applications.

Stereo line-level audio inputs are provided, along with a control input pin to allow operation of the audio interface in either one of two industry standard modes. The device also has a selectable digital high pass filter to remove residual DC offsets.

Stereo 24-bit multi-bit sigma delta ADCs are provided, along with oversampling digital interpolation filters. 24-bit digital audio output word lengths and sampling rates from 32kHz to 96kHz are supported.

FEATURES

• Audio Performance

- 90 dB SNR (‘A’ weighted @ 48kHz)

• 3.0 – 5.5V Analogue Supply Operation

• 3.0 – 3.6V Digital Supply Operation

• ADC Sampling Frequency: 32kHz – 96kHz

• Selectable ADC High Pass Filter

• Selectable Audio Data Interface Modes

- I2S or Left Justified

• 14-lead SOIC Package

APPLICATIONS

• CD and Minidisc Recorders

• DVD Players

• General Purpose Audio Conversion