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Panasonic Electronic Components Datasheet

MN86157 Datasheet

Shading Correction LSI

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MN86157 pdf
For Communications Equipment
MN86157
Shading Correction LSI
Overview
The MN86157 contains a 7-bit A/D converter for use
in correcting, at the bit level, shading distortion for sig-
nals from image sensors, optics, and similar sources.
It uses external RAM to support adaptive correction
that responds to changes in distortion patterns. It also uses
ROM to provide fixed correction when a white reference
plane signal is not available.
The chip is also usable as a stand-alone A/D converter.
Features
Choice of correction range (50% or 75%) depending
on extent of shading distortion
Parallel A/D converter functions
Resolution: 7 bits
Non-linearity: ±1/2 LSB
Conversion speed: max. 5 MHz
Note: This is the guaranteed design value for the
chip used as a stand-alone A/D converter. The
guaranteed value at shipment is ±3 LSB
Ability to start and stop clock in the middle of a line
to support CdS contacting image sensors and other
devices with variable scanning rates
Overflow pin that simplifies task of adding auto
background control (ABC) circuit
Single 5 volt power supply
Guaranteed TTL levels for input
Applications
Facsimile equipment
Pin Assignment
A5 34
A4 35
A3 36
A2 37
A1 38
A0 39
D0 40
D1 41
D2 42
D3 43
D4 44
22 SHST
21 R/W
20 INHI
19 VSS
18 VDD
17 N.C.
16 VREFL
15 VIN
14 VREFH
13 VDD
12 OE
(TOP VIEW)
QFP044-P-1010


Panasonic Electronic Components Datasheet

MN86157 Datasheet

Shading Correction LSI

No Preview Available !

MN86157 pdf
MN86157
Block Diagram
For Communications Equipment
Selector
Selector
D0to6
A0to11
21 R/W
4 MOE


Part Number MN86157
Description Shading Correction LSI
Maker Panasonic Semiconductor
Total Page 8 Pages
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1 MN86157 Shading Correction LSI Panasonic Semiconductor
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