CS8406
192 kHz Digital Audio Interface Transmitter
Features
General Description
Complete EIAJ CP1201, IEC-60958, AES3,
The CS8406 is a monolithic CMOS device which encodes and transmits audio data according to the AES3,
IEC60958, S/PDIF, o r EIAJ CP1201 standards. The
CS8406 accepts aud io and digital data, which is then
multiplexed, encoded, and driven onto a cable.
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 Channe Status
l
and User Bit Data
On-Chip Differential Line Driver
Generates CRC Codes and Parity Bits
Stand-Alone Mode Allows Use without a
Microcontroller
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 access to channel status and user bit data pins.
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.
Target applications include A/V Receivers, CD-R, DVD
receivers, digital mixin g consoles, effects processors,
set-top boxes, and computer and automotive audio
systems.
VD
VL
GND
RXP
C or U Data Buffer
ILRCK
ISCLK
SDIN
Serial
Audio
Input
RST
http://www.cirrus.com
TXP
Driver
TXN
TCBL
Control Port &
Registers
Misc.
Control
H/S
AES3
S/PDIF
Encoder
U
SDA/
SCL/ AD1/ AD0/ AD2 INT
CDOUT CCLK CDIN CS
Copyright Cirrus Logic, Inc. 2012
(All Rights Reserved)
Output Clock
Generator
OMCK
AUG '12
DS580F6
