DESCRIPTION

The WM8569 is a stereo audio codec ideal for DVD, PVR, LCD-TV and automotive applications. Independent ADC and DAC clocking permits separate record and playback sampling rates.

A stereo 24-bit multi-bit sigma delta DAC with oversampling and digital interpolation filters provides the output signal. Digital audio input word lengths from 16-24 bits and sampling rates from 8kHz to 192kHz are supported.

A stereo 24-bit multi-bit sigma delta ADC is used. Digital audio output word lengths from 16-24 bits and sampling rates from 32kHz to 96kHz are supported. The DAC and ADC support independent sampling rates.

The audio data interface supports I2S, left justified, right justified and DSP digital audio formats.

FEATURES

• Audio Performance

− 103dB SNR (‘A’ weighted @ 48kHz) DAC

− DAC Sampling Frequency: 8kHz – 192kHz

− 100dB SNR (‘A’ weighted @ 48kHz) ADC

− ADC Sampling Frequency: 32kHz – 96kHz

• Independent Sampling Rates for ADC and DAC

• 3-wire SPI Serial or Hardware Control Interface

• Audio Mute and De-Emphasis Functions

• Programmable Audio Data Interface Modes

− 16/20/24/32 bit Word Lengths

− I2S, Left, Right Justified or DSP

• 2.7V to 5.5V Analogue Supply

• 2.7V to 3.6V Digital Supply

• 28-lead SSOP Package

APPLICATIONS

• DVD Recorder

• Personal Video Recorder

• PC Sound Card

• Automotive Audio

• LCD-TV