VSP2270_14 Datasheet, PDF (1/4 Pages) Texas Instruments – CCD SIGNAL PROCESSOR For Digital Cameras

Not Recommended For New Designs
VSP2270
CCD SIGNAL PROCESSOR
FOR DIGITAL CAMERAS
SLES019 − DECEMBER 2001
FEATURES
D CCD Signal Processing:
− Correlated Double Sampling (CDS)
− Programmable Black Level Clamping
D Programmable Gain Amplifier (PGA)
−6-dB to 42-dB Gain Ranging
D 10-Bit Digital Data Output:
− Up to 28-MHz Conversion Rate
− No Missing Codes
D 77-dB Signal-To-Noise Ratio
D 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
D DSC, DVC, Security Camera
DESCRIPTION
The 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
PRODUCT
PACKAGE
PACKAGE
OUTLINE
DESIGNATOR†
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER‡
TRANSPORT
MEDIA
VSP2270Y
48-Lead LQFP
PT
−25°C to 85°C
VSP2270Y
VSP2270Y
250-piece tray
VSP2270Y
48-Lead LQFP
PT
−25°C to 85°C
VSP2270Y
VSP2270Y/2K Tape and reel
VSP2270M
48-Lead P-VQFN
RGN
−25°C to 85°C
VSP2270M
VSP2270M
250-piece tray
VSP2270M
48-Lead P-VQFN
RGN
−25°C to 85°C
VSP2270M
VSP2270M/2K Tape and reel
† _{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
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2001, Texas Instruments Incorporated
www.ti.com
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