CS7654 Datasheet, PDF (1/62 Pages) Cirrus Logic – CCD COLOR SPACE PROCESSOR WITH ANALOG OUTPUT

CS7654
CCD Color-Space Processor with Analog Output
Features
Description
l ITU-601 Compliant Image Formatting
l ITU-656 and SMPTE-125/M Transports
l I²C Control Interface
l Limited Secondary I²C Bus Master
l Automatic White Balance
l Programmable Gamma Correction
l Programmable Interpolation
l Programmable Luma Gain and Saturation
Control
l Fully Programmable Color Separation Matrix
Coefficients
l Supports up to 1440, active pixels per line,
with no limitation on Vertical Size
l Programmable "Chroma Kill" circuit
l Highly integrated for low part count cameras
l Three DACs providing simultaneous composite,
S-video outputs
l Multi-standard support for NTSC-M, NTSC-
JAPAN, PAL (B, D, G, H, I, M, N, Combination N)
l On-chip voltage reference generator modes, tri-
state DACs and power down mode.
The CS7654 is a low-power Digital Color-Space Proces-
sor for CCD cameras. It provides all the necessary digital
image processing for standard four-color interline trans-
fer CCD imagers. The CS7654 processes the magenta,
yellow, cyan, and green (MYCG) CCD imager data into
YCrCb formatted component digital video and into ana-
log PAL or NTSC. Internal processing includes color
separation, automatic white balance, user programma-
ble gamma correction, programmable scaling
(interpolation), digital output formatting and encoding
function for analog output. Also, a special "Chroma Kill"
circuit eliminates false colors during saturation. Video
output can be formatted to be compatible with NTSC-M,
NTSC-J, PAL-B,D,G,H,I,M,N, and Combination N sys-
tems. Closed Caption is supported in NTSC. Three 10-
bit DACs provide two channels for an S-Video output
port and one composite video outputs.A High-speed I²C
compatible control interface is provided for in system design.
A general purpose I/O port is also available to help con-
serve valuable board space and to provide up to eight
“boot” configurations.The CS7654 is designed to work
directly with the CS7615 CCD Imager Analog Processor.
ORDERING INFORMATION
CS7654-KQ 0° to 70° C
(10 mm x 10 mm x 1.4 mm)I
64-pin TQFP
CCD
MOSAIC
DATA
SECONDARY
I²C BUS
DEFORMATTER
COLOR
SEPARATION
AND
ANITALIASING
WHITE
BALANCE
GAMMA
CORRECTION
SCALER
I²C INTERFACE
REGISTER
BLOCK
PLL AND
CLOCK
DRIVER
AWB
CONTROL
INTERPOLATION
AND FILTER
OUTPUT
FORMATTER
CHROMA
VIDEO
FORMATTER
Σ
LUMA
INTERPOLATION
AND DELAY
EXTERNAL
TIMING
10-BIT
DAC
10-BIT
DAC
10-BIT
DAC
PRIMARY
I²C BUS
XTAL
CHROMA
COMPOSITE
LUMA
VREF/
VSYNC
HREF/
HSYNC
Preliminary Product Information
Cirrus Logic, Inc.
P.O. Box 17847, Austin, Texas 78760
[phone] FAX: [phone]
http://www.crystal.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright © Cirrus Logic, Inc. 1998
(All Rights Reserved)
MAY ‘99
DS330PP2
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