Cirrus Logic CS8415A - Manual

Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
http://www.cirrus.com
96 kHz Digital Audio Interface Receiver
Features
! Complete EIAJ CP1201, IEC-60958, AES3,
S/PDIF-compatible Receiver
! +5.0 V Analog Supply (VA+)
! +3.3 V or +5.0 V Digital Interface (VL+)
! 7:1 S/PDIF Input MUX
! Flexible 3-wire Serial Digital Output Port
! 8-kHz to 96-kHz Sample Frequency Range
! Low-jitter Clock Recovery
! Pin and Microcontroller Read Access to
Channel Status and User Data
! Microcontroller and Standalone Modes
! Differential Cable Receiver
! On-chip Channel Status and User Data Buffer
Memories
! Auto-detection of Compressed Audio Input
Streams
! Decodes CD Q Sub-Code
! OMCK System Clock Mode
General Description
The CS8415A is a monolithic CMOS device which re-
ceives and decodes one of 7 channels of audio data
according to the IEC60958, S/PDIF, EIAJ CP1201, or
AES3. The CS8415A has a serial digital audio output
port and comprehensive control ability through a 4-wire
microcontroller port. Channel status and user data are
assembled in block-sized buffers, making read access
easy.
A low-jitter clock recovery mechanism yields a very
clean recovered clock from the incoming AES3 stream.
Stand-alone operation allows systems with no micro-
controller to operate the CS8415A with dedicated
output pins for channel status data.
The CS8415A is available in a 28-pin TSSOP and SOIC
package in both Commerical (-10 to +70°C) and Indus-
trial grades (-40 to +85° C). The CDB8415A Customer
Demonstration board is also available for device evalu-
ation and implementation suggestions. Please refer to
page 2 for ordering information.
Target applications include A/V receivers, CD-R, DVD
receivers, multimedia speakers, digital mixing consoles,
effects processors, set-top boxes, and computer and
automotive audio systems.
Clock &
Data
Recovery
Misc.
Control
Serial
Audio
Output
Receiver
AES3
S/PDIF
Decoder C & U bit
Data
Buffer
Control
Port &
Registers
RXN0
RXP6
OLRCK
OSCLK
SDOUT
RST EMPH U SDA/
CDOUT SCL/
CCLK AD1/
CDIN AD0/
CS INT
VA+ AGND FILT RERR VL + DGND
H/S
RMCK
RXP5
RXP4
RXP3
RXP2
RXP1
RXP0
7:1
MUX
OMCK
AUGUST '05
DS470F4
CS8415A