廬
VSP
210
1
VSP2101
CCD SIGNAL PROCESSOR
For Digital Cameras
TM
FEATURES
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CCD SIGNAL PROCESSING:
Correlated Double Sampling
Black Level Clamping
鈥? to +34dB Gain Ranging
High SNR: 53dB
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10-BIT A/D CONVERSION:
Up to 27MHz Conversion Rate
No Missing Codes
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PORTABLE OPERATION:
Low Voltage: 2.7V to 3.6V
Low Power: 190mW at 3.0V
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LOW POWER: 160mW at 2.7V
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POWER-DOWN MODE: 18mW
DESCRIPTION
The VSP2101Y is a complete digital camera IC, pro-
viding signal conditioning and 10-bit analog-to-digital
conversion for the output of a CCD array.
The primary CCD channel provides correlated double
sampling to extract the video information from the
pixels, 鈥?dB to +34dB gain ranging with digital con-
trol for varying illumination conditions, and black
level clamping for an accurate black reference.
Input signal clamping and offset correction of the CDS
is also performed. The stable gain control is linear in
dB. Additionally, the black level is quickly recovered
after gain change. An on-chip general purpose 10-bit
digital-to-analog converter allows you to obtain ana-
log control voltage for iris control.
The VSP2101Y is available in a 48-lead LQFP pack-
age and operates from a single +3V supply.
APPLICATIONS
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VIDEO CAMERAS
DIGITAL STILL CAMERAS
PC CAMERAS
SECURITY CAMERAS
REFCK DATCK
WRT SD SCLK
DAC OUT
OB
ADCK
DRV
DD
C
Serial Port
Register
10-Bit
D/A Converter
(DAC1)
A/D
Timing Control
10-Bit
D/A Converter
(DAC0)
Black Level
Auto-Zero
CCD D
Correlated
Double
Sampling
Clamp
+6dB
Log VCA
+28dB
10-Bit
A/D
Converter
Output
Latch
10-Bit
Digital
Output
CCD Out
CCD R
Dummy
Pixel
Auto- Zero
A/D
Reference
DUMC
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-1506B
Printed in U.S.A. June, 1999