CS8416
192 kHz Digital Audio Interface Receiver
32 kHz to 192 kHz Sample Frequency Range
Features
Low-Jitter Clock Recovery
Complete EIAJ CP1201, IEC-60958, AES3,
S/PDIF-Compatible Receiver
Pin and Microcontroller Read Access to
+3.3 V Analog Supply (VA)
Channel Status and User Data
+3.3 V Digital Supply (VD)
SPI or IC Control Port Software Mode and
Stand-Alone Hardware Mode
+3.3 V or +5.0 V Digital Interface Supply (VL)
8:2 S/PDIF Input MUX
Differential Cable Receiver
AES/SPDIF Input Pins Selectable in Hardware
On-Chip Channel Status Data Buffer Memories
Mode
Auto-Detection of Compressed Audio Input
Three General Purpose Outputs (GPO) Allow
Streams
Signal Routing
Decodes CD Q Sub-Code
Selectable Signal Routing to GPO Pins
S/PDIF-to-TX Inputs Selectable in Hardware
OMCK System Clock Mode
Mode
See the General Description and Ordering Information
Flexible 3-wire Serial Digital Output Port
on page 2.
VA VD VL DGND OMCK
AGND FILT RMCK
De-emphasis
RXN Filter
Receiver
OLRCK
Clock & AES3 Serial
C & U bit
OSCLK
Data S/PDIF Audio
RXP0
Data Buffer
Recovery Decoder Output SDOUT
RXP1
RXP2
TX Passthrough
8:2
GPO0
RXP3
Control
n:3
MUX GPO1
RXP4
Format Port &
Misc.
MUX
Registers
RXP5 AD2/GPO2
Control Detect
RXP6
RXP7
RST
SDA/ SCL/ AD1/ AD0/
CDOUT CCLK CDIN CS
Copyright Cirrus Logic, Inc. 2007
AUGUST '07
(All Rights Reserved)
CS8416
General Description
The CS8416 is a monolithic CMOS device that receives and decodes one of eight stereo pairs of digital audio data
according to the IEC60958, S/PDIF, EIAJ CP1201, or AES3 interface standards. The CS8416 has a serial digital
audio output port and comprehensive control ability through a selectable control port in Software Mode or through
selectable pins in Hardware Mode. Channel status data are assembled in buffers, making read access easy. GPO
pins may be assigned to route a variety of signals to output pins.
A low-jitter clock recovery mechanism yields a very clean recovered clock from the incoming AES3 stream.
Stand-alone operation allows systems with no microcontroller to operate the CS8416 with dedicated output pins for
channel status data.
The CS8416 is available in 28-pin TSSOP, SOIC, and QFN packages in Commercial grade (-10 to +70 C) and
Automotive grade (-40 to +85 C). The CDB8416 Customer Demonstration board is also available for device eval-
uation and implementation suggestions. Please refer to Ordering Information on page 59 for complete ordering
information.
Target applications include A/V receivers, CD-R, DVD receivers, multimedia speakers, digital mixing consoles, ef-
fects processors, set-top boxes, and computer and automotive audio systems.
2 DS578F3