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VSP2080T Datasheet

  • VSP2080T

  • CCD SIGNAL FRONT-END PROCESSOR FOR DIGITAL CAMERAS

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廬
VSP
20
80
廬
VSP2080
CCD SIGNAL FRONT-END
PROCESSOR FOR DIGITAL CAMERAS
TM
FEATURES
q
CCD SIGNAL PROCESSING
Correlated Double Sampling
Black Level Clamping
0 to +34dB Gain Range
55dB SNR Referred to Full Scale
q
SELECTABLE LOGIC-INPUT POLARITY
Positive Active or Negative Active
q
PORTABLE OPERATION
Low Voltage: 2.7V to 3.6V
Low Power: 144mW at 3.0V
Power-Down Mode: 10mW
DESCRIPTION
The VSP2080 is a complete front-end processing IC
for digital cameras. The VSP2080 provides signal
conditioning for the output of a CCD array. The
VSP2080 provides correlated double sampling to ex-
tract the video information from the pixels, 0dB to
+34dB gain range with analog control for varying
illumination conditions, and black level clamping for
an accurate black reference. The stable gain control is
linear in dB. Additionally, the black level quickly
recovers after screen changes. The MODE pin allows
the selection of logic-input polarity. The VSP2080 is
available in a 20-lead TSSOP package.
APPLICATIONS
q
q
q
q
VIDEO CAMERAS
DIGITAL STILL CAMERAS
PC CAMERAS
SECURITY CAMERAS
REFCK
DATCK
MODE
AGC IN
C
OB
Logic Input
Polarity
Control
Optical
Black Level
Auto-Zero
Clamp
OUT
CCD
OUT
CCD D
Correlated
Double
Sampling
+6dB
Log
VCA
+28dB
CCD R
Dummy
Pixel
Auto-Zero
Internal
Bias
Generator
DUMC
REFT
REFB
REF IN
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111
Twx: 910-952-1111 鈥?Internet: http://www.burr-brown.com/ 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏
1998 Burr-Brown Corporation
PDS-1498B
Printed in U.S.A. August, 1999

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