WM8785 データシートの表示（PDF） - Wolfson Microelectronics plc

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WM8785

24-Bit, 192kHz Stereo ADC

Wolfson Microelectronics plc 

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24-Bit, 192kHz Stereo ADC

WM8785

DESCRIPTION

FEATURES

The WM8785 is a stereo audio ADC with differential inputs

designed for high performance recordable media applications.

Data is provided as a PCM output.

Stereo 24-bit multi-bit sigma-delta ADCs are used with digital

audio output word lengths of 16 to 32 bits, and sampling rates

from 8kHz to 192kHz. The device has a selectable high pass

filter to remove residual DC offsets. The device also supports a

TDM bus for data out.

The device is controlled via a 2 or 3 wire serial interface. The

interface provides access to all features including oversampling

rate, audio format, powerdown, master/slave control and digital

signal manipulation. The device is supplied in a 20-lead SSOP

package.

• SNR 111dB (‘A’ weighted @ 48kHz)

• THD -102dB (at -0.1dB)

• Sampling Frequency: 8 – 192kHz

• 2 or 3 Wire Microprocessor Control Interface

• Master or Slave Clocking Mode

• Programmable Audio Data Interface Modes

- I2S, Left, Right Justified or DSP

- 16/20/24/32 bit Word Lengths

• A TDM bus is supported for data out

• Supply Voltages

- Analogue 4.5 to 5.5V

- Digital core: 2.7V to 3.6V

• 20-lead SSOP package

APPLICATIONS

• Recordable DVD Players

• Personal Video Recorders

• High End Sound Cards

• Studio Audio Processing Equipment

BLOCK DIAGRAM

WOLFSON MICROELECTRONICS plc

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Production Data, December 2006, Rev 4.1

Copyright ©2006 Wolfson Microelectronics plc

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