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Burr-Brown Corporation - CCD SIGNAL PROCESSOR for DIGITAL CAMERAS

Numéro de référence VSP2262K
Description CCD SIGNAL PROCESSOR for DIGITAL CAMERAS
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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VSP2262K fiche technique
VSP2260
VSP2260
www.ti.com
CCD SIGNAL PROCESSOR for
DIGITAL CAMERAS
FEATURES
q CCD SIGNAL PROCESSING:
Correlated Double Sampling (CDS)
Programmable Black Level Clamping
q PROGRAMMABLE GAIN AMPLIFIER (PGA):
–6dB to +42dB Gain Ranging
q 10-BIT DIGITAL DATA OUTPUT:
Up to 20MHz Conversion Rate
No Missing Codes
q 79dB SIGNAL-TO-NOISE RATIO
q PORTABLE OPERATION:
Low Voltage: 2.7V to 3.6V
Low Power: 83mW (typ) at 3.0V
Stand-By Mode: 6mW
DESCRIPTION
The VSP2260 is a complete mixed-signal processing
IC for digital cameras, providing signal conditioning
and Analog-to-Digital (A/D) conversion for the output
of a CCD array. The primary CCD channel provides
Correlated Double Sampling (CDS) to extract video
information from the pixels, –6dB to +42dB gain
range with digital control for varying illumination
conditions, and black level clamping for an accurate
black level reference. Input signal clamping and offset
correction of the input CDS are also performed. The
stable gain control is linear in dB. Additionally, the
black level is quickly recovered after gain change. The
VSP2260Y is available in an LQFP-48 package and
operates from a single +3V/+3.3V supply.
CLPDM
SHP SHD
SLOAD SCLK SDATA
RESET
ADCCK DRVDD
VCC
CCDIN
CCD
Output
Signal
Input
Clamp
Correlated
Double
Sampling
(CDS)
Serial Interface
Programmable
Gain
Amplifier
(PGA)
–6dB
to
+42dB
Timing
Control
Analog-
to-
Digital
Converter
Output
Latch
10-Bit
Digital
Output
B[9:0]
Preblanking
Optical Black (OB)
Level Clamping
Reference Voltage Generator
PBLK
COB
CLPOB
BYPP2 BYP BYPM REFN
CM
REFP DRVGND GNDA
Copyright © 2000, Texas Instruments Incorporated
SBMS010
Printed in U.S.A. November, 2000

PagesPages 13
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