Cirrus Logic CS8406 - Manual

Copyright  Cirrus Logic, Inc. 2012
(All Rights Reserved)
http://www.cirrus.com
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
 Stand-Alone Mode Allows Use without a
Microcontroller
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.
The audio data is input through a configurable, 3-wire
input port. The channel status and user bit data are in-
put 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 di-
rect 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.
RXP
ILRCK
ISCLK
SDIN
TXP
TXN
RST OMCK U SDA/
CDOUT
SCL/
CCLK
AD1/
CDIN
AD0/
CS
INT
VL GND
AD2 H/S
VD
TCBL
Misc.
Control
Serial
Audio
Input
C or U Data Buffer
Control Port &
Registers
AES3
S/PDIF
Encoder
Output Clock
Generator
Driver
AUG '12
DS580F6
CS8406