CS4397_04 Datasheet, PDF (1/34 Pages) Cirrus Logic – 24-Bit, Multi-Standard D/A Converter for Digital Audio

CS4397
24-Bit, Multi-Standard D/A Converter for Digital Audio
Features
24 Bit Conversion
Up to 192 kHz Sample Rates
120 dB Dynamic Range
-100 dB THD+N
Supports PCM, DSD and External
Interpolation filters
Advanced Dynamic-Element Matching
Low Clock Jitter Sensitivity
Digital De-emphasis for 32 kHz, 44.1 kHz and
48 kHz
External Reference Input
I
Description
The CS4397 is a complete high performance 24-bit
48/96/192 kHz stereo digital-to-analog conversion sys-
tem. The device includes a digital interpolation filter
followed by a oversampled multi-bit delta-sigma modula-
tor which drives 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 DEM guarantees low noise and distortion at
all signal levels.
ORDERING INFORMATION
CS4397-KS -10° to 70° C 28-pin Plastic SOIC
CS4397-KSZ -10° to 70° C 28-pin Plastic SOIC
CDB4397
Evaluation Board
Lead free
SCLK
LRCK
SDATA
SERIAL INTERFACE
AND FORMAT SELECT
SOFT MUTE
DE-EMPHASIS
FILTER
MCLK
CLOCK
DIVIDER
INTERPOLATION
FILTER
MULTI-BIT
∆Σ
MODULATOR
INTERPOLATION
FILTER
MULTI-BIT
∆Σ
MODULATOR
HARDWARE MODE CONTROL
(CONTROL PORT)
DYNAMIC
ELEMENT
MATCHING
LOGIC
DYNAMIC
ELEMENT
MATCHING
LOGIC
SWITCHED
CAPACITOR-DAC
AND FILTER
SWITCHED
CAPACITOR-DAC
AND FILTER
VOLTAGE REFERENCE
AOUTL+
AOUTL-
AOUTR+
AOUTR-
M4
M3
M2
M1
M0
RESET MUTEC MUTE
(AD0/CS) (AD1/CDIN) (SCL/CCLK)
(SDA/CDOUT)
FILT+ VREF FILT- CMOUT
http://www.cirrus.com
© Copyright Cirrus Logic, Inc. 2004
(All Rights Reserved)
SEP ‘04
DS333F1
1