CS42432
108 dB, 192 kHz 4-in, 6-out TDM CODEC
FEATURES
GENERAL DESCRIPTION
The CS42432 CODEC provides four multi-bit analog-to-dig-
ital and six multi-bit digital-to-analog Delta-sigma
converters. The CODEC is capable of operation with either
differential or single-ended inputs and outputs, in a 52-pin
MQFP package.
z Four 24-bit A/D, Six 24-bit D/A Converters
z ADC Dynamic Range
– 105 dB Differential
– 102 dB Single-ended
z DAC Dynamic Range
Four fully differential, or single-ended, inputs are available
on stereo ADC1and ADC2. Digital volume control is provid-
ed for each ADC channel, with selectable overflow
detection.
– 108 dB Differential
– 105 dB Single-ended
z ADC/DAC THD+N
All six DAC channels provide digital volume control and can
operate with differential or single-ended outputs.
– -98 dB Differential
– -95 dB Single-ended
z Compatible with Industry-standard Time
An auxiliary serial input is available for an additional two
channels of PCM data.
Division Multiplexed (TDM) Serial Interface
DAC Sampling Rates up to 192 kHz
z ADC Sampling Rates up to 96 kHz
z Programmable ADC High-pass Filter for DC
Offset Calibration
The CS42432 is ideal for audio systems requiring wide dy-
namic range, negligible distortion and low noise, such as
A/V receivers, DVD receivers, and automotive audio
systems.
z
z Logarithmic Digital Volume Control
z Hardware Mode or Software I²C & SPI™
z Supports Logic Levels Between 5 V and
1.8 V
ORDERING INFORMATION
See page 59.
Control Port & Serial
Audio Port Supply =
1.8 V to 5 V
Digital Supply =
3.3 V
Analog Supply =
3.3 V to 5 V
Hardware Mode or
I2C/SPI Software Mode
Control Data
Internal Voltage
Reference
Register
Configuration
Reset
Differential or
Single-Ended
Outputs
Multibit
DAC1-3 and
Analog Filters
6
6
TDM Serial Audio
Input
Volume
Controls
Digital
Filters
∆Σ
Modulators
Auxilliary Serial
Audio Input
Multibit
Oversampling
ADC1
High Pass
Filter
Digital
Filters
2
Input Master
Clock
Differential or
Single-Ended
Analog Inputs
2
Multibit
Oversampling
ADC2
High Pass
Filter
TDM Serial Audio
Output
Digital
Filters
2
2
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Preliminary Product Information
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2005
FEB ‘05
DS673PP2
(All Rights Reserved)