CS43122
122 dB, 24-Bit, 192 kHz DAC for Digital Audio
Features
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.
l 24 Bit Conversion
l Up to 192 kHz Sample Rates
l 122 dB Dynamic Range
l -102 dB THD+N
l Second-Order Dynamic-Element Matching
l Low Clock Jitter Sensitivity
l 102 dB Stop-band attenuation
l Single +5 V supply
l Soft Mute Control
l Digital De-Emphasis for 32, 44.1, and 48 kHz
l External Reference Input
l Pin-compatible with the CS4396
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
SCLK
SERIAL INTERFACE
AND FORMAT SELECT
DE-EMPHASIS
FILTER
LRCK
SOFT MUTE
SDATA
DYNAMIC
MULTI-BIT
∆Σ
MODULATOR
SWITCHED
CAPACITOR-DAC
AND FILTER
AOUTL+
AOUTL-
ELEMENT
MATCHING
LOGIC
INTERPOLATION
FILTER
CLOCK
DIVIDER
MCLK
DYNAMIC
ELEMENT
MATCHING
LOGIC
MULTI-BIT
∆Σ
MODULATOR
SWITCHED
CAPACITOR-DAC
AND FILTER
AOUTR+
AOUTR-
INTERPOLATION
FILTER
HARDWARE MODE CONTROL
(CONTROL PORT)
VOLTAGE REFERENCE
M4
M3
M2
M1
M0
RESET MUTEC MUTE
FILT+ VREF FILT- CMOUT
(AD0/CS) (AD1/CDIN) (SCL/CCLK)
(SDA/CDOUT)
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Advance Product Information
Copyright Cirrus Logic, Inc. 2000
(All Rights Reserved)
DEC ‘00
DS526PP2
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
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