CS7654
CCD Color-Space Processor with Analog Output
Features
Description
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-
l ITU-601 Compliant Image Formatting
l ITU-656 and SMPTE-125/M Transports
2
l I C Control Interface
2
l Limited Secondary I C 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, 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.
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.
ORDERING INFORMATION
CS7654-KQ 0° to 70° C
(10 mm x 10 mm x 1.4 mm)
64-pin TQFP
I
COLOR
SEPARATION
AND
CCD
MOSAIC
DATA
INTERPOLATION
AND FILTER
WHITE
BALANCE
AWB
CONTROL
DEFORMATTER
10-BIT
DAC
CHROMA
COMPOSITE
LUMA
ANITALIASING
CHROMA
VIDEO
FORMATTER
10-BIT
DAC
Σ
GAMMA
CORRECTION
OUTPUT
FORMATTER
SCALER
LUMA
10-BIT
DAC
INTERPOLATION
AND DELAY
VREF/
VSYNC
PLL AND
CLOCK
DRIVER
SECONDARY
I2C BUS
REGISTER
BLOCK
EXTERNAL
TIMING
I2C INTERFACE
HREF/
HSYNC
PRIMARY
I2C BUS
XTAL
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Preliminary Product Information
Cirrus Logic, Inc.
MAY ‘99
DS330PP2
Copyright Cirrus Logic, Inc. 1998
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.crystal.com
(All Rights Reserved)
1