VSP2212_16 Datasheet, PDF (1/4 Pages) Texas Instruments – CCD SIGNAL PROCESSOR For Digital Cameras

Not Recommended For New Designs
®
VSP2212
VSP2212
VSP2212
For most current data sheet and other product
information, visit www.burr-brown.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):
–6 to +42dB Gain Ranging
q 12-BIT DIGITAL DATA OUTPUT:
Up to 20MHz Conversion Rate
No Missing Codes
q 79dB SIGNAL-TO-NOISE RATIO
q ON-CHIP GENERAL-PURPOSE 8-BIT
DIGITAL-TO-ANALOG CONVERTERS
q PORTABLE OPERATION:
Low Voltage: 2.7V to 3.6V
Low Power: 99mW (typ) at 3.0V
Stand-By Mode: 6mW
DESCRIPTION
The VSP2212 is a complete mixed-signal processing
IC for digital cameras, providing signal conditioning
and analog-to-digital conversion for the output of a
CCD array. The primary CCD channel provides Cor-
related Double Sampling (CDS) to extract video infor-
mation from the pixels, –6dB to +42dB gain ranging
with digital control for varying illumination condi-
tions, and black level clamping for an accurate black
reference. Input signal clamping and offset correction
of the input CDS is also performed. The stable gain
control is linear in dB. Additionally, the black level is
quickly recovered after gain change. The two on-chip
general-purpose 8-bit digital-to-analog converters al-
low you to obtain analog various control voltage, such
as V_SUB control of CCD imager. The VSP2212 is the
high-performance version of the VSP2000/2100 fami-
lies. The VSP2212Y is available in an LQFP-48 pack-
age and the VSP2212M is avail able in a VQFN-48
package. Both products operate from a single +3V/
+3.3V supply.
CLPDM SHP SHD SLOAD SCLK SDATA
RESET
DACOUT0 DACOUT1
ADCCK DRV_DD
V_CC
SBMS009
CCDIN
CCD
Output
Signal
Input
Clamp
Serial Interface
8-Bit
D/A Converter
(DAC0)
8-Bit
D/A Converter
(DAC1)
Timing
Control
Correlated
Double
Sampling
(CDS)
Programmable
Gain
Amplifier
(PGA)
–6dB
to
+42dB
Analog
to
Digital
Converter
Output
Latch
12-Bit
Digital
Output
B[11:0]
Optical Black (OB)
Preblanking
Level Clamping
Reference Voltage Generator
PBLK
COB
CLPOB
BYPP2 BYP BYPM REFN
CM
REFP DRVGND GNDA
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©_{2000 Burr-Brown Corporation}
PDS-11598A
®
VSPriPnte2d 2in1U.2S.A. May, 2000