CS8406
192 kHz Digital Audio Interface Transmitter
Features
General Description
The CS8406 is a monolithic CMOS device which en-
codes and transmits audio data according to the AES3,
IEC60958, S/PDIF, o r EIAJ CP1201 standards. The
CS8406 accepts audio and digital data, which is then
multiplexed, encoded, and driven onto a cable.
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)
The audio data is input through a configurable, 3-wire
input port. The channel status and user bit data are in-
On-Chip Channel Status and User Bit Buffer
®
put through an SPI™ or I²C microcontroller port, and
Memories Allow Block-Sized Updates
may be assembled in block-sized buffers. For systems
with no microcontroller, a Stand-Alone Mode allows di-
rect access to channel status and user bit data pins.
Flexible 3-Wire Serial Digital Audio Input Port
Up to 192-kHz Frame Rate
The CS8406 is available in a 28-pin TSSOP and SOIC
package for both Co mmercial (-10º to +70ºC) and
Automotive grade (-40º to +85ºC). The CDB8416
Demonstration board is also available for device
evaluation and implementation suggestions. Please
refer to “Ordering Information” on page 34 for complete
details.
Microcontroller Write Access to Channel Status
and User Bit Data
On-Chip Differential Line Driver
Generates CRC Codes and Parity Bits
Target applications include A/V Receivers, CD-R, DVD
receivers, digital mixing consoles, effects processors,
set-top boxes, and computer and automotive audio
systems.
Stand-Alone Mode Allows Use without a
Microcontroller
GND
VL
VD
RXP
AES3
S/PDIF
Encoder
TXP
C or U Data Buffer
Driver
TXN
TCBL
ILRCK
ISCLK
SDIN
Serial
Audio
Input
Output Clock
Generator
Control Port &
Registers
Misc.
Control
H/S RST
U
SDA/
SCL/ AD1/ AD0/ AD2 INT
OMCK
CDOUT CCLK CDIN CS
Copyright Cirrus Logic, Inc. 2012
AUG '12
DS580F6
(All Rights Reserved)
http://www.cirrus.com