WM8785 Datasheet, PDF (1/31 Pages) Wolfson Microelectronics plc – 24-Bit, 192kHz Stereo ADC

w
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
To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/
Pre-Production, December 2005, Rev 3.0
Copyright 2005 Wolfson Microelectronics plc