CS43122
122 dB, 24-Bit, 192 kHz DAC for Digital Audio
Features
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24
Description
The CS43122 is a complete high performance 24 bit-
192 kHz stereo digital-to-analog conversion system. The
device includes a digital interpolation filter followed by an
oversampled 5 bit delta-sigma modulator which drives
second generation dynamic-element-matching (DEM)
selection logic. The output from the DEM block controls
the input to a multi-element switched capacitor DAC/low-
pass filter, with fully-differential outputs. This multi-bit ar-
chitecture features significantly lower out-of-band noise
and jitter sensitivity than traditional 1-bit designs, and the
advanced second generation DEM guarantees low noise
and distortion at all signal levels.
The CS43122 is the optimal D/A converter solution for
any application that requires the highest performance
and best possible sound quality including high-end con-
sumer and professional audio products such as
Universal DVD players, A/V receivers, Outboard D/A
Converters, CD Players, and Mixing Consoles.
ORDERING INFORMATION
CS43122-KS -10° to 70° C 28-pin SOIC
CDB43122
Evaluation Board
Bit Conversion
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Up to 192 kHz Sample Rates
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122 dB Dynamic Range
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-102 dB THD+N
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Second-Order Dynamic-Element Matching
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Low Clock Jitter Sensitivity
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102 dB Stop-band attenuation
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Single +5 V supply
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Soft Mute Control
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Digital De-Emphasis for 32, 44.1, and 48 kHz
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External Reference Input
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Pin-compatible with the CS4396
SCLK
LRCK
SDATA
SERIAL INTERFACE
AND FORMAT SELECT
SOFT MUTE
DE-EMPHASIS
FILTER
INTERPOLATION
FILTER
MCLK
CLOCK
DIVIDER
MULTI-BIT
∆Σ
MODULATOR
DYNAMIC
ELEMENT
MATCHING
LOGIC
SWITCHED
CAPACITOR-DAC
AND FILTER
AOUTL+
AOUTL-
INTERPOLATION
FILTER
MULTI-BIT
∆Σ
MODULATOR
DYNAMIC
ELEMENT
MATCHING
LOGIC
SWITCHED
CAPACITOR-DAC
AND FILTER
AOUTR+
AOUTR-
HARDWARE MODE CONTROL
(CONTROL PORT)
VOLTAGE REFERENCE
M4
M3
M2
M1
(AD0/CS) (AD1/CDIN) (SCL/CCLK)
M0
RESET
(SDA/CDOUT)
MUTEC MUTE
FILT+
VREF
FILT-
CMOUT
Advance Product Information
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
©
Cirrus Logic, Inc. 2000
(All Rights Reserved)
DEC ‘00
DS526PP2
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CIRRUS [ CIRRUS LOGIC ]
