CS4391A
24-Bit, 192 kHz Stereo DAC with Volume Control
Features
Complete Stereo DAC System: Interpolation,
D/A, Output Analog Filtering
108 dB Dynamic Range
94 dB THD+N
Direct Stream Digital Mode
Low Clock Jitter Sensitivity
+5 V Power Supply
ATAPI Mixing
On-Chip Digital De-emphasis for 32, 44.1,
and 48 kHz
Volume Control with Soft Ramp
– 119 dB Attenuation
– 1 dB Step Size
– Zero Crossing Click-Free Transitions
Description
The CS4391A is a complete stereo digital-to-analog sys-
tem including digital interpolation, fourth-order delta-
sigma digital-to-analog conversion, digital de-emphasis,
volume control, channel mixing and analog filtering. The
advantages of this architecture include: ideal differential
linearity, no distortion mechanisms due to resistor
matching errors, no linearity drift over time and tempera-
ture and a high tolerance to clock jitter.
The CS4391A accepts PCM data at sample rates from
4 kHz to 192 kHz, DSD audio data, consumes very little
power and operates over a wide power supply range.
These features are ideal for DVD, A/V receivers, CD and
set-top box systems.
ORDERING INFORMATION
CS4391A-KS 20-pin SOIC
-10 to 70 °C
CS4391A-KZ
20-pin TSSOP
-10 to 70 °C
CS4391A-KZZ 20-pin TSSOP, Lead Free -10 to 70 °C
CDB4391A
Evaluation Board
Direct Interface with 5 V to 1.8 V Logic
I
M1
(SDA/CDIN)
M3
M2
(SCL/CCLK)
M0
(AD0/CS)
AMUTEC
BMUTEC
CMOUT
FILT+
MODE SELECT
(CONTROL PORT)
RST
EXTERNAL
MUTE CONTROL
REFERENCE
INTERPOLATION
FILTER
SCLK
SERIAL
PORT
LRCK
INTERPOLATOR
FILTER
SDATA
VOLUME
CONTROL
∆Σ
DAC
ANALOG
FILTER
AOUTA+
AOUTA-
MIXER
AOUTB+
VOLUME
CONTROL
∆Σ
DAC
ANALOG
FILTER
AOUTB-
MCLK
Preliminary Product Information
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. 2004
(All Rights Reserved)
©
JUL ‘04
DS600PP3
1
CIRRUS [ CIRRUS LOGIC ]
