CS8420 Datasheet, PDF (1/80 Pages) Cirrus Logic – DIGITAL AUDIO SAMPLE RATE CONVERTER

CS8420
Digital Audio Sample Rate Converter
Features
l Complete IEC60958, AES3, S/PDIF, EIAJ
CP1201 compatible transceiver with
asynchronous sample rate converter
l Flexible 3-wire serial digital i/o ports
l 8 kHz to 108 kHz sample rate range
l 1:3 and 3:1 maximum input to output sample
rate ratio
l 128 dB dynamic range
l -117 dB THD+N at 1 kHz
l Excellent performance at almost a 1:1 ratio
l Excellent clock jitter rejection
l 24 bit i/o words
l Pin and micro-controller read/write access to
Channel Status and User Data
l Micro-controller and stand-alone modes
I
General Description
The CS8420 is a stereo digital audio sample rate con-
verter (SRC) with AES3 type and serial digital audio
inputs, AES3 type and serial digital audio outputs, along
with comprehensive control ability via a 4-wire microcon-
troller port. Channel status and user data can be
assembled in block sized buffers, making read/modi-
fy/write cycles easy.
Digital audio inputs and outputs may be 24, 20 or 16 bits.
The input data can be completely asynchronous to the
output data, with the output data being synchronous to
an external system clock.
Target applications include CD-R, DAT, MD, DVD and
VTR equipment, mixing consoles, digital audio transmis-
sion equipment, high quality D/A and A/D converters,
effects processors and computer audio systems.
ORDERING INFO
CS8420-CS 28-pin SOIC, -10 to +70°C temp. range
CDB8420 Evaluation Board
VA+ AGND FILT RERR RMCK
VD+ DGND
ILRCK
ISCLK
SDIN
RXP
RXN
Serial
Audio
Input
Sample
Rate
Converter
Serial
Audio
Output
OLRCK
OSCLK
SDOUT
Receiver
Clock & AES3
Data
S/PDIF
Recovery Decoder
C & U bit
Data
Buffer
AES3
S/PDIF
Encoder
Driver
TXP
TXN
Misc.
Control
Control
Port &
Registers
Output
Clock
Generator
H/S RST
EMPH U TCBL SDA/ SCL/ AD1/ AD0/ INT
CDOUT CCLK CDIN CS
OMCK
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
P.O. Box 17847, Austin, Texas 78760
[phone] FAX: [phone]
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 1999
(All Rights Reserved)
AUG ‘99
DS245PP2
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