CS7622 Datasheet, PDF (1/36 Pages) Cirrus Logic – CCD Imager Analog Processor

CS7622
CCD Imager Analog Processor
Features
Description
l 13-Bit A/D Conversion Using DRX™
Technology
l Backlight Compensation
l Supports Full Scale Analog Input Voltage
Ranges from 300 mV to 1 V in 100 mV
Increments
l High Resolution Output Mode
l Low Resolution (Preview) Output Mode for
LCD Driver
l Integrated Correlated Double Sampler
l Digital Black Level Clamp
l Digital Outputs Selectable for 13, 12, or 10 Bits
l Low Power Consumption
l Power Down Mode
l High Speed Serial Interface
l Supports a Large Variety of Clock Input
Frequencies
l Low power mode option
The CS7622 is a low-power analog front-end processor
for interline or frame transfer CCD imagers. Main appli-
cations include digital still image cameras and video
cameras.
The architecture includes a correlated double sampler,
black level clamp and a 13-bit A/D conversion module
using patented DRX technology.
Chip parameters can be programmed using a high
speed 4-wire asynchronous digital interface.
The chip outputs digitized CCD data in either 13-bit, 12-
bit or 10-bit format. 10-bit outputs are generated from the
13-bit A/D output by a programmable companding curve.
ORDERING INFORMATION
CS7622-IQ -40 to +85 °C 32-pin TQFP 7x7x1.4m
CCD OUTPUT
CDS/DRX
GAIN
A/D
CONVERTER
BLACK
LEVEL
CK_FT
CK_DATA
CLOCK
GENERATOR
OUTPUT
COMPANDER
CLOCK
REGISTER
BLOCK
DATA OUT
CLOCK OUT
SERIAL
INTERFACE
SERIAL BUS
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
[phone] FAX: [phone]
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 1999
(All Rights Reserved)
JUL ‘99
DS322PP1
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