WM8569 Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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WM8569

24-bit, 192kHz Stereo CODEC with Volume Control

Wolfson Microelectronics plc 

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WM8569

24-bit, 192kHz Stereo CODEC with Volume Control

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.

The device is controlled via a 3-wire serial interface. The

interface provides access to all features including volume

controls, mutes, de-emphasis and power management

facilities. A hardware control interface allows access to a

limited feature set. The WM8569 is available in a 28-lead

SSOP.

BLOCK DIAGRAM

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

WOLFSON MICROELECTRONICS plc

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Production Data, June 2006, Rev 4.0

Copyright 2006 Wolfson Microelectronics plc

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