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VSP2270Y
10-Bit, 28Msps CCD Signal Processor for Digital Cameras
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SLES019 − DECEMBER 2001
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FEATURES CCD Signal Processing:
− Correlated Double Sampling (CDS)
− Programmable Black Level Clamping Programmable Gain Amplifier (PGA)
−6-dB to 42-dB Gain Ranging 10-Bit Digital Data Output:
− Up to 28-MHz Conversion Rate
− No Missing Codes 77-dB Signal-To-Noise Ratio Portable Operation:
− Low Voltage: 2.7 V to 3.6 V
− Low Power: 93 mW (Typ) at 3 V
− Stand-By Mode: 6 mW
APPLICATIONS DSC, DVC, Security Camera
DESCRIPTIONThe VSP2270 device is a complete mixed-signal
processing IC for digital cameras providing signal
conditioning and analog-to-digital conversion for the
output of a charge-coupled device (CCD) array. The
primary CCD channel provides correlated double
sampling (CDS) to extract the video information from
the pixels, –6-dB to 42-dB 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 VSP2270Y device is available in a 48-lead LQFP
package and the VSP2270M device is available in a
48-lead P-VQFN package. Both devices operate from
a single 3-V/3.3-V supply.
AVAILABLE OPTIONS†A detailed drawing and a dimension table are located at the end of the data sheet.
‡Models with a slash (/) are available only in tape and reel in the quantities indicated (e.g., /2K indicates 2,000 devices per reel). Ordering 2,000
pieces of the VSP2270Y/2K device will get a single 2,000-piece tape and reel.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Not Recommended For New Designs
