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Cirrus-logic CDB8420 Manual de usuario Pagina 1

Busca en linea o descarga Manual de usuario para Hardware Cirrus-logic CDB8420. Cirrus Logic CDB8420 User Manual Manual de usuario

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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. 2003
(All Rights Reserved)
http://www.cirrus.com
CDB8420
Evaluation Board for CS8420
Features
Asynchronous Sample Rate Conversion
Input to output conversion ratio as large as
1:3 or 3:1
Receives and transmits AES/EBU, S/PDIF
and EIAJ-340 compatible digital audio
Runs from a single 5 Volt supply.
Crystals are supplied to allow operation at
44.1 kHz, 48 kHz, and 96 kHz output sample
rates.
Digital patch area.
Description
The CDB8420 is designed to allow rapid evaluation of
the CS8420. Because of the high performance of the
CS8420, the board is set up for easy connection to an
Audio Precision or a Rohde and Schwarz test system.
Currently available A/D and D/A converters are not ade-
quate to test the full performance of the device.
Input and output data may independently be set to either
AES/EBU or S/PDIF in optical or coaxial physical
formats.
Windows 98 PC software provides a GUI interface to
make configuration easy. The software communicates
through the PC’s RS232 port to a micro-controller on the
evaluation board that controls the CS8420. All the possi-
ble software modes of the CS8420 may be tested.
ORDERING INFORMATION
CDB8420 Evaluation Board
I
CS8420
Amtel
µC
Optical In
S/PDIF In
AES 3 In
AES 3 Out
S/PDIF Out
Optical Out
RS232 port to PC
Dec ‘03
DS245DB4
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Indice de contenidos

Pagina 1 - Evaluation Board for CS8420

Preliminary Product InformationThis document contains information for a new product.Cirrus Logic reserves the right to modify this product without not

Pagina 2 - TABLE OF CONTENTS

CDB842010 DS245DB4A B C D ESCHM DWG CDB8420 (600-00100-01)DGomez Marketing Evaluation BoardA23Wednesday, November 12, 2003TitleSize Document Number R

Pagina 3 - DS245DB4 3

CDB8420DS245DB4 11Figure 6. Silkscreen

Pagina 4

CDB842012 DS245DB4Figure 7. Top PCB

Pagina 5 - 2.4 Starting up the Hardware:

CDB8420DS245DB4 13Figure 8. Bottom PCB

Pagina 6 - 3.1 Main Window

CDB842014 DS245DB4Revision History Release Date ChangesDB4 Nov 12, 2003 Updated schematics.Moved legal statement to end of document and updated.Added

Pagina 7 - 3.3 Script file syntax

CDB84202 DS245DB4TABLE OF CONTENTS1. OVERVIEW ...

Pagina 8 - 8 DS245DB4

CDB8420DS245DB4 31. OVERVIEWThe CDB8420 evaluation board contains a CS8420and the supporting circuitry necessary for it to op-erate. The input and out

Pagina 9 - DS245DB4 9

CDB84204 DS245DB4CONNECTOR INPUT/OUTPUT SIGNAL PRESENT+5V Input +5 Volt powerGND Input Ground connection from power supplyOPTICAL INPUT Input Digital

Pagina 10 - 10 DS245DB4

CDB8420DS245DB4 52. CDB8420.EXE QUICK START GUIDE2.1 Setting up the hardware:1) Connect the CDB8420 to a 5V DC power sup-ply.2) Set: J11 to Optical, J

Pagina 11 - Figure 6. Silkscreen

CDB84206 DS245DB43. CDB8420.EXE USER'S GUIDE3.1 Main WindowThe CDB8420 Control Panel allows you to viewand access the data flow configuration of

Pagina 12 - Figure 7. Top PCB

CDB8420DS245DB4 73.2 Board SetupThe Board Setup panel has some very useful func-tions, including setting the COM Port used by theapplication, resettin

Pagina 13 - Figure 8. Bottom PCB

CDB84208 DS245DB4A B C D ESDINILRCKISCLKRMCKSDOUTOLRCKOSCLKOMCKSCHM DWG CDB8420 (600-00100-01)DGomez Marketing Evaluation BoardB13Wednesday, November

Pagina 14

CDB8420DS245DB4 9A B C D ESCHM DWG CDB8420 (600-00100-01)DCS8420 Marketing Evaluation BoardB33Wednesday, November 12, 2003TitleSize Document Number R

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