Cirrus Logic CS43122 - Manual

Advance Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright  Cirrus Logic, Inc. 2000
(All Rights Reserved)
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
CS43122
122 dB, 24-Bit, 192 kHz DAC for Digital Audio
Features
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
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
SCLK
MCLK
M4
LRCK
SDATA
AOUTL+
AOUTR+
SERIAL INTERFACE
AND FORMAT SELECT
INTERPOLATION
SOFT MUTE
∆Σ
MODULATOR
DYNAMIC
DE-EMPHASIS
SWITCHED
AOUTL-
AOUTR-
FILT+
FILTER
INTERPOLATION
FILTER
FILTER
MULTI-BIT
∆Σ
MODULATOR
MULTI-BIT
ELEMENT
MATCHING
LOGIC
DYNAMIC
ELEMENT
MATCHING
LOGIC
CAPACITOR-DAC
AND FILTER
SWITCHED
CAPACITOR-DAC
AND FILTER
VREF CMOUT FILT-
VOLTAGE REFERENCE
HARDWARE MODE CONTROL
CLOCK
DIVIDER
(CONTROL PORT)
(AD0/CS)
M3 M2
(AD1/CDIN) (SCL/CCLK)
M1 M0
(SDA/CDOUT)
RESET MUTEC MUTE
DEC ‘00
DS526PP2