Cirrus Logic CS4391A - Manual

Preliminary 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. 2004
(All Rights Reserved)
www.cirrus.com
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
Direct Interface with 5 V to 1.8 V Logic
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
I
LRCK
SDATA
(SDA/CDIN)
MCLK
AMUTEC
AOUTA-
AOUTB-
SERIAL
PORT
INTERPOLATION
INTERPOLATOR
(CONTROL PORT)
∆Σ
DAC
DAC
EXTERNAL
ANALOG
FILTER
ANALOG
FILTER
∆Σ
MUTE CONTROL
FILTER
FILTER
RST
SCLK
VOLUME
CONTROL
VOLUME
CONTROL
MIXER
(SCL/CCLK) (AD0/CS)
AOUTA+
AOUTB+
CMOUT
REFERENCE
FILT+ BMUTEC
M1
M3
M2
MODE SELECT
M0
JUL ‘04
DS600PP3