
Copyright
Cirrus Logic, Inc. 2005
(All Rights Reserved)
http://www.cirrus.com
Advance Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
103 dB, 192 kHz 6-Channel D/A Converter
Features
!
Advanced Multi-bit Delta Sigma Architecture
!
24-bit Conversion
!
Automatic Detection of Sample Rates up to
192 kHz
!
103 dB Dynamic Range
!
-88 dB THD+N
!
Single-Ended Output Architecture
!
Direct Stream Digital Mode
–
Non-Decimating Volume Control
–
On-Chip 50 kHz Filter
–
Matched PCM and DSD Analog Output
Levels
!
Compatible with Industry-Standard Time
Division Multiplexed (TDM) Serial Interface
!
Selectable Digital Filters
!
Volume Control with 1/2-dB Step Size and Soft
Ramp
!
Low Clock Jitter Sensitivity
!
+5 V Analog Supply, +2.5 V Digital Supply
!
Separate 1.8 to 5 V Logic Supplies for the
Control & Serial Ports
Description
The CS4364 is a complete 6-channel digital-to-analog
system. This D/A system includes digital de-emphasis,
half-dB step size volume control, ATAPI channel mix-
ing, selectable fast and slow digital interpolation filters
followed by an oversampled, multi-bit delta sigma mod-
ulator which includes mismatch shaping technology that
eliminates distortion due to capacitor mismatch. Follow-
ing this stage is a multi-element switched capacitor
stage and low-pass filter with single-ended analog
outputs.
The CS4364 also has a proprietary DSD processor
which allows for volume control and 50 kHz on-chip fil-
tering without an intermediate decimation stage. It also
offers an optional path for direct DSD conversion by di-
rectly using the multi-element switched capacitor array.
The CS4364 accepts PCM data at sample rates from
4 kHz to 216 kHz, DSD audio data, and delivers excel-
lent sound quality. These features are ideal for multi-
channel audio systems including SACD players, A/V re-
ceivers,
digital
TV’s,
mixing
processors, sound cards and automotive audio
systems.
consoles,
effects
This product is available in 48-pin LQFP package and is
available in both Automotive (-40° C - +85° C) and
Commercial (-10° C - +70° C) temperature grades. For
full Ordering Information see
page 49
.
Control Port Supply = 1.8 V to 5 V
Register/Hardware
Configuration
IntReference
Reset
S
L
L
TDM Serial
Digital Supply = 2.5 V
I
2
C/Hardware Mode or
Control Data
Analog Supply = 5 V
Six Channels of
6
PCM Serial
Volume
Filters
DAC and
Analog Filters
Multi-bit
Modulators
DSD Input
DSD Processor
-50 kHz filter
External Mute
Control
Mute Signals
6
6
Serial Audio Port
AUGUST '05
DS619A1
CS4364