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參數(shù)資料
| 型號： | LA7265W |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip Black and White CCD Camera Signal Processing IC(單片黑白CCD照相機信號處理芯片) |
| 中文描述： | 單芯片黑白CCD攝像機信號處理集成電路（單片黑白防治荒漠化公約照相機信號處理芯片） |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 355K |
| 代理商： | LA7265W |
Ordering number : EN4850A
93098HA (OT) / 30895TH (OT) No. 4850-1/24
LA7265W
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Single-Chip Black and White CCD Camera
Signal Processing IC
Monolithic Linear IC
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
Overview
The LA7265W is a single-chip IC that provides the signal
processing required by black and white CCD cameras.
This IC is optimal for surveillance cameras, door intercom
cameras, and personal computer input cameras due to its
ultraminiature package, low current drain, wide dynamic
range, and high AGC gain.
Functions
CCD clamping
CDS (built-in S/H capacitor)
IRIS amplifier
AGC backlight correction
S-curve gamma correction
Aperture correction
Variable setup
Sync addition
CCD clipping
IRIS window
AGC amplifier
Gamma correction (0.45, 1.0 and variable)
1H interpolation switch
Aperture low illumination suppression
Variable W.C.
75
drivers
Features
CCD clamping used to provide a wide dynamic range:
The LA7265W can handle a 1.5 Vp-p CCD signal data
level.
Reduced sampling noise provided by a built-in CDS
capacitor.
Variable AGC gain: up to a maximum of 32 dB.
Backlight correction provided by weighting the iris and
AGC levels.
Three different gamma correction circuits, including S-
curve gamma correction
Knee characteristics are added to the gamma correction
to prevent incorrect white rendering in low light
situations.
Automatic aperture adjustment according to the
brightness
Reduced current drain (under 40 mA)
Ultraminiature package (SQFP48)
Reduced external component count (50% as compared
to the earlier Sanyo LA7261M)
Reduced number of adjustment points (two points)
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