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CDB4954A fiches techniques PDF

Cirrus Logic - (CDB4954A / CDB4955A) Evaluation Board

Numéro de référence CDB4954A
Description (CDB4954A / CDB4955A) Evaluation Board
Fabricant Cirrus Logic 
Logo Cirrus Logic 





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CDB4954A fiche technique
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CDB4954A/55A
Evaluation Board for CS4954/55
Features
l Demonstrates recommended layout and
grounding practices
l Supports both parallel and serial digital
video input
l On-board test pattern generation
l Supports NTSC/PAL video formats
l 3.3 V or 5 V operation
l Composite, S-Video, and RGB outputs
l Supports Standalone mode via onboard
DIP switch
l RS232 interface with PC
l Single 6-9 V external DC power supply
l Additional op-amps with open pads for
prototyping additional filters
I
Description
The CDB4954A/55A board allows fast evaluation of the
features of the CS4954 digital video encoders. The
board may also be configured to accept external TTL
level timing and data signals for use during system
development.
Also, to simplify the demonstration of the features of the
CS4954, the CDB4954A/55A is equipped with an on-
board microcontroller and pre-programmed FLASH
memory to facilitate configuration and evaluation of the
CS4954 digital video encoder.
ORDERING INFORMATION
CDB4954A Evaluation Board
CDB4955A Evaluation Board
POWER
INLET
6.5 - 10VDC
Reset
Reset
Switch
MPU
PROGRAM
HEADER
RESET-
PROG
D
B
9
TXD
RXD
RS-232
Interface
PC SERIAL
INTERFACE
TX
RX
Regulator
Regulator
+3.3V
3.3V
or
+5V
+5V
1
2
3
4
5
6
7
8
Motorola 908
Microcontroller
PLD
EEPROM
ISP
RESET-
ALE
WR-
RD-
A/D7:0
CCIR 656 SERIAL/ PARALELL
INPUTS
DB25
656_IN
ECL
RECEIVER
BNC
SMPTE-259M
Interface
656
FPGA
54MHZ
CTL
Addr
Data
RESET-
CTL
Addr
Data
RESET-
OSC
SDRAM
Flash
245
BUFFER
Hdr -
16PIN
SDA_O
SCL
TTX
/2
27MHz
656
DATA
/8
HS,VS,
FIELD
TTXD,
TTXRQ
R
ADDR
RD-
WR-
DAT<7..0>
RST-
SDA
SCL
CS4954
G
B
Y
C
CVBS
Hdr -
16PIN
SELECTABLE
HI/LOW
IMPEDANCE
FILTERS
OUT
FILT
OUT
FILT
OUT
FILT
OUT
FILT
OUT
FILT
OUT
FILT
u
PROGRAMMING
ENABLE
JUMPER
RCA
CONNECTORS
DIN4
CONN.
RCA
CONNECTOR
TEST
4K
1%
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
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2001
(All Rights Reserved)
MAY ‘01
DS278DB2
1

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