CDB8427 Cirrus Logic Inc, CDB8427 Datasheet

EVALUATION BOARD FOR CS8427

CDB8427

Manufacturer Part Number
CDB8427
Description
EVALUATION BOARD FOR CS8427
Manufacturer
Cirrus Logic Inc
Datasheet

Specifications of CDB8427

Main Purpose
Audio, Sample Rate Converter
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
CS8427
Primary Attributes
Sample Rate Converter with Digital Audio Transmitter and Receiver
Secondary Attributes
48 kHz Output Sample Rates, AES/EBU, S/PDIF, EIAJ-340, GUI
Product
Audio Modules
Silicon Manufacturer
Cirrus Logic
Silicon Core Number
CS8427
Kit Application Type
Communication & Networking
Application Sub Type
Digital Audio Transceiver
Kit Contents
Evaluation Board
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
598-1783
Features
Preliminary Product Information
Cirrus Logic, Inc.
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
Receives and transmits AES/EBU, S/PDIF
and EIAJ-340 compatible digital audio
Convenient access to the Serial Audio Input
Port and Serial Audio Output Port through
headers.
Runs from a single 5 Volt supply.
Crystal supplied to allow operation at 48 kHz,
sample rate.
Digital patch area.
I
S /P D IF In
O p tica l In
A E S 3 In
Evaluation Board for CS8427
A m te l
µ C
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
C S8427
Copyright  Cirrus Logic, Inc. 2002
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
(All Rights Reserved)
CDB8427
R S 2 3 2 p o rt to P C
O p tica l O u t
S /P D IF O u t
A E S 3 O u t
CDB8427
Evaluation Board
DS477DB2
AUG ‘02
1

Related parts for CDB8427

CDB8427 Summary of contents

Page 1

... FAX: (512) 445 7581 http://www.cirrus.com 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 ...

Page 2

... CDB8427.EXE USER'S GUIDE ................................................................................................ 6 3.1 Main Window ..................................................................................................................... 6 3.2 Board Setup ....................................................................................................................... 7 3.3 Script file syntax ................................................................................................................. 7 LIST OF FIGURES Figure 1. CDB8427 Control Panel Main Window ............................................................................ 6 Figure 2. Board Setup Panel ........................................................................................................... 7 Figure 3. CS8427 Digital Audio Transceiver ................................................................................... 9 Figure 4. Atmel AVR RISC Microcontroller ................................................................................... 10 Figure 5. Power Supplies and Reset Circuit.................................................................................. 11 Figure 6 ...

Page 3

... OVERVIEW The CDB8427 evaluation board contains a CS8427 and the supporting circuitry necessary for it to op- erate. The input and output options include AES3 and S/PDIF in optical and coaxial formats. In soft- ware mode, the control registers of the CS8427 are set by an Atmel AVR RISC microcontroller. A Mi- ...

Page 4

... Setting up the Hardware Note: SeeTable 1 on page 5 and Table 2 on page 5 the configuration and jumper settings. 1) Connect the CDB8427 power sup- ply. 2) Set: J11 to Optical, J16 to S/PDIF, enable J13 (S/PDIF), and disable J15 (MUTE). 3) Connect the CDB8427 to the PC COM port us- ing RS232 cable. ...

Page 5

... DISABLE OPTICAL INPUT disabled AES3 Connects output as AES3 XLR S/PDIF Connects output as S/PDIF coaxial ENABLE S/PDIF OUTPUT enabled DISABLE S/PDIF OUTPUT disabled ENABLE Enables MUTE when in hardware mode 1 DISABLE Disables MUTE when in hardware mode 1 Table 2. CDB8427 Jumper Settings CDB8427 FUNCTION SELECTED 5 ...

Page 6

... CDB8427.EXE USER'S GUIDE 3.1 Main Window The CDB8427 Control Panel allows you to view and access the data flow configuration of the CS8427. See Figure 1. Clicking the right mouse button in any of the boxes will bring up a property menu containing all the register bits relevant to that block, as well as some high level functions, such as data sources and formatting options ...

Page 7

... RUN 1 write 2 3 0x10 12h 13 Table 1 contains a Figure 2. Board Setup Panel CDB8427 used for single line comments call an external script file named “scriptfile” assert reset of the CS8427 de-assert reset of the CS8427 write register 1 with hex 30 set the bit field labeled RUN to 1 ...

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... CDB8427 ...

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... OMCK OSCLK OLRCK 3 4 SDOUT RMCK ISCLK ILRCK 3 4 SDIN CDB8427 1 9 ...

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... A8 PC1 36 A9 PC2 37 A10 PC3 38 A11 PC4 39 A12 PC5 A13 40 OC PC6 1 A14 41 C PC7 11 42 ALE PA7(AD7 PA6(AD6 PA5(AD5 PA4(AD4 PA3(AD3 CDB8427 PB6 16 PB5 15 PB4 14 PB3/CDOUT 13 PB2/CDIN 12 PB1/CCLK 11 PB0/CS 10 PE7 9 PE6 8 PE5 7 PE4 6 PE3 5 PE2 4 PE1/TXD 3 PE0/RXD 2 /PEN INH ...

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... CDB8427 11 ...

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