AI5412 데이터 시트보기 (PDF) - A1 PROs co., Ltd.
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AI5412 Datasheet PDF : 20 Pages
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Ai5412
Electronic Shutter/Auto IRIS
By setting the ENB pin (Pin 14) high, the XSUB pulse is output for a specific period to activate the electronic
shutter and auto iris.
1) Auto Iris (IRENB=high, MODE2=any level)
Symbol
NO.
Function
IRIN/ED1
17
Iris signal input
SPDNV/ED2
22
Shutter speed down reference voltage
SPUPV/ED0
23
Shutter speed up reference voltage
2) Parallel input electronic shutter (IRENB=low, MODE2=high)
Symbol
NO.
Function
SPDNV/ED2 22
H
H
H
H
L
IRIN/ED1
17
H
H
L
L
H
SPUPV/ED0 23
Shutter speed
H
EIA:
1/100
CCIR:
1/120
L
1/250
H
L
H
1/500 1/1000 1/2000
L
L
L
H
L
L
L:
H
L
1/5000 1/10000 1/100000
3) Serial input electronic shutter (IRENB=low, MODE2=high)
Serial input data format
SPDNV/ED2
D7 D6 D5 D4 D3 D2 D1 D0
IRIN/ED1
SPUPV/ED0
The ED2 data is latched in the register at the ED1 rise, and retrieved internally at the ED0 rise.
Typical shutter speed
EIA
CCIR
Load value
00h
4Eh
6Ah
87h
9Ch
ACh
CAh
Shutter speed
1/100000
1/10000
1/5000
1/2000
1/1000
1/500
1/250
Load value
00h
4Ah
65h
82h
97h
A7h
C5h
Shutter speed
1/80000
1/10000
1/5000
1/2000
1/1000
1/500
1/250
EDh
1/100
E1h
1/120
6
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