Cirrus Logic CDB8427 - Manual

Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright  Cirrus Logic, Inc. 2002
(All Rights Reserved)
Cirrus Logic, Inc.
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
CDB8427
Evaluation Board for CS8427
Features
z Receives and transmits AES/EBU, S/PDIF
and EIAJ-340 compatible digital audio
z Convenient access to the Serial Audio Input
Port and Serial Audio Output Port through
headers.
z Runs from a single 5 Volt supply.
z Crystal supplied to allow operation at 48 kHz,
sample rate.
z Digital patch area.
Description
The CDB8427 is designed to allow rapid evaluation of
the CS8427. The board is set up for easy connection to
an Audio Precision or a Rohde and Schwarz test system.
Input and output data formats may independently be set
to either AES/EBU, or S/PDIF with either optical or coax-
ial physical format.
Separate headers are provided so the Serial Audio Input
Port and Serial Audio Output Port may be interfaced to
off board circuits.
Microsoft
®
Windows
®
98 PC software provides a GUI
interface to make configuration easy. The software com-
municates through the PC’s RS232 port to a
microcontroller on the evaluation board that controls the
CS8427. All the possible software modes of the CS8427
may be tested.
ORDERING INFORMATION
CDB8427 Evaluation Board
I
C S8427
A m te l
µ C
O p tic a l In
S /P D IF In
A E S 3 In
A E S 3 O u t
S /P D IF O u t
O p tic a l O u t
R S 2 3 2 p o rt to P C
AUG ‘02
DS477DB2