CS8406
192 kHz Digital Audio Interface Transmitter
Features
Complete EIAJ CP1201, IEC-60958, AES3,
S/PDIF compatible transmitter
+3.3 V or 5.0 V Digital Supply (VD)
+3.3 V or 5.0 V Digital Interface (VL)
On-chip Channel Status and User bit buffer
memories allow block sized updates
Flexible 3-wire serial digital audio input port
Up to 192 kHz frame rate
Microcontroller write access to Channel
Status and User bit data
On-chip differential line driver
Generates CRC codes and parity bits
Standalone mode allows use without a
microcontroller
28-pin SOIC/TSSOP package
General Description
The CS8406 is a monolithic CMOS device which en-
codes and transmits audio data according to the AES3,
IEC60958, S/PDIF, or EIAJ CP1201. The CS8406 ac-
cepts audio and digital data, which is then multiplexed,
encoded and driven onto a cable.
The audio data is input through a configurable, 3-wire
input port. The channel status and user bit data are input
through an SPI or I²C microcontroller port, and may be
assembled in block sized buffers. For systems with no
microcontroller, a stand alone mode allows direct ac-
cess to channel status and user bit data pins.
Target applications include A/V Receivers, CD-R, DVD
receivers, digital mixing consoles, effects processors,
set-top boxes, and computer and automotive audio
systems.
ORDERING INFORMATION
CS8406-CS
CS8406-CZ
CS8406-IS
CS8406-IZ
CS8406-DS
CS8406-DZ
CDB8416
28-pin SOIC
-10 to +70°C
28-pin TSSOP -10 to +70°C
28-pin SOIC
-40 to +85°C
28-pin TSSOP -40 to +85°C
28-pin SOIC
-40 to +85°C
28-pin TSSOP -40 to +85°C
Evaluation Board
I
VD
VL
GND
RXP
ILRCK
ISCLK
SDIN
Serial
Audio
Input
Misc.
Control
H/S
C & U bit
Data
Buffer
AES3
S/PDIF
Encoder
TXP
Driver
TXN
TCBL
Control
Port &
Registers
Output
Clock
Generator
RST
U
SDA/
SCL/ AD1/ AD0/
AD2
INT
CDOUT CCLK CDIN CS
OMCK
www.cirrus.com
Copyright Cirrus Logic, Inc. 2004
(All Rights Reserved)
JUL ‘04
DS580F1
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CIRRUS [ CIRRUS LOGIC ]
