AI5412 Просмотр технического описания (PDF) - A1 PROs co., Ltd.

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AI5412

Timing Controller for CCD Monochrome Camera

A1 PROs co., Ltd. 

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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