CS4226
Surround Sound Codec
Features
Stereo 20-bit A/D converters
Six 20-bit D/A converters
S/PDIF receiver
– AC-3 & MPEG auto-detect capability
Description
The CS4226 is a single-chip codec providing stereo an-
alog-to-digital and six digital-to-analog converters using
Delta-Sigma conversion techniques. This +5V device
also contains volume control independently selectable
for each of the six D/A channels. An S/PDIF receiver is
included as a digital input channel. Applications include
Dolby Pro-logic , Dolby Digital AC-3
,
THX
and
DTS home theater systems, DSP based car audio sys-
tems, and other multi-channel applications.
ORDERING INFORMATION
CS4226-KQ -10° to +70° C
CS4226-KQZ -10° to +70° C
CS4226-BQ -40° to +85° C
CS4226-BQZ -40° to +85° C
CS4226-DQ -40° to +85° C
CDB4226
44-pin TQFP
44-pin TQFP Lead Free
44-pin TQFP
44-pin TQFP Lead Free
44-pin TQFP
Evaluation Board
I
SCL/CCLK SDA/CDOUT AD1/CDIN AD0/CS I
2
C/SPI
PDN
Control Port
DAC#1
LRCK
DAC#2
Volume
Control
VD+ VA+
Voltage
Reference
CMOUT
AOUT1
AOUT2
AOUT3
AOUT4
AOUT5
AOUT6
AINAUX
AIN1L
AIN1R
AIN2L/FREQ0
AIN2R/FREQ1
AIN3L/AUTODATA
AIN3R/AUDIO
AGND1
AGND2
Serial Audio Data Interface
DAC#3
DAC#4
DAC#5
DAC#6
Mono
ADC
Left
ADC
Right
ADC
Volume
Control
Volume
Control
Volume
Control
Volume
Control
SDIN3
Input
Gain
DEM
DEM
Clock Osc/
Divider
CLKOUT XTI
XTO
PLL
S/PDIF RX/Auxiliary Input
FILT HOLD/RUBIT
LRCKAUX/RX3
RX1 DGND1 DGND2
DATAUX/RX4
SCLKAUX/RX2
www.cirrus.com
Copyright Cirrus Logic, Inc. 2004
(All Rights Reserved)
Input MUX
MUX
Digital Filters
SDOUT1
SDOUT2
OVL/ERR
Analog Low Pass and
Output Stage
Digital Filters
SCLK
SDIN1
SDIN2
Volume
Control
NOV ‘04
DS188F4
1
®
®
®
®
108 dB DAC signal-to-noise ratio (EIAJ)
Mono 20-bit A/D converter
Programmable Input gain & output
attenuation
On-chip anti-aliasing and output smoothing
filters
De-emphasis for 32 kHz, 44.1 kHz, 48 kHz
©
CIRRUS [ CIRRUS LOGIC ]
