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WM8738

24 Bit Stereo ADC

Wolfson Microelectronics plc 

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24 Bit Stereo ADC

WM8738

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.

The device is available in a small 14-lead SOIC package.

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

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

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Production Data, August 2006, Rev 4.4

Copyright © 2006 Wolfson Microelectronics plc

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