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CS42438-CMZ データシート(PDF) 1 Page - Cirrus Logic

部品番号 CS42438-CMZ
部品情報  108 dB, 192 kHz 6-in, 8-out TDM CODEC
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メーカー  CIRRUS [Cirrus Logic]
ホームページ  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS42438-CMZ データシート(HTML) 1 Page - Cirrus Logic

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Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
© Cirrus Logic, Inc. 2005
(All Rights Reserved)
Cirrus Logic, Inc.
http://www.cirrus.com
FEATURES
Six 24-bit A/D, Eight 24-bit D/A Converters
ADC Dynamic Range
– 105 dB Differential
– 102 dB Single-ended
DAC Dynamic Range
– 108 dB Differential
– 105 dB Single-ended
ADC/DAC THD+N
– -98 dB Differential
– -95 dB Single-ended
Compatible with Industry-standard Time
Division Multiplexed (TDM) Serial Interface
DAC Sampling Rates up to 192 kHz
ADC Sampling Rates up to 96 kHz
Programmable ADC High-pass Filter for DC
Offset Calibration
Logarithmic Digital Volume Control
Hardware Mode or Software I²C & SPI
Supports Logic Levels Between 5 V and
1.8 V
GENERAL DESCRIPTION
The CS42438 CODEC provides six multi-bit analog-to-digi-
tal
and
eight
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
M
QFP package.
Six fully differential, or single-ended, inputs are available on
stereo ADC1, ADC2, and ADC3. When operating in Single-
ended Mode, an internal MUX before ADC3 allows selec-
tion from up to four single-ended inputs. Digital volume
control is provided for each ADC channel, with selectable
overflow detection.
All eight DAC channels provide digital volume control and
can operate with differential or single-ended outputs.
An auxiliary serial input is available for an additional two
channels of PCM data.
The CS42438 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.
ORDERING INFORMATION
See page 62
.
Control Port & Serial
Audio Port Supply =
1.8 V to 5 V
Register
Configuration
Internal Voltage
Reference
Reset
TDM Serial Audio
Input
Digital Supply =
3.3 V
Hardware Mode or
I2C/SPI Software Mode
Control Data
Analog Supply =
3.3 V to 5 V
Differential or
Single-Ended
Outputs
8
Input Master
Clock
8
TDM Serial Audio
Output
Multibit
Oversampling
ADC1&2
High Pass
Filter
Differential or
Single-Ended
Analog Inputs
4
Digital
Filters
4
*Optional MUX allows selection from up to 4 single-ended inputs.
Multibit
Oversampling
ADC3
High Pass
Filter
2
Digital
Filters
2
Auxilliary Serial
Audio Input
Volume
Controls
Digital
Filters
Multibit
DAC1-4 and
Analog Filters
∆Σ
Modulators
CS42438
FEB ‘05
DS646PP2
108 dB, 192 kHz 6-in, 8-out TDM CODEC


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