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CXD3607R

Detailed Description of Output Pins

The CXD3607R generates special pulses that are used by signal processing circuits, etc. These details are

described below.

• WEN (Pin 30)

The CXD3607R outputs a WEN signal that indicates the effective line period output from the CCD image

sensor. The WEN signal is high during the vertical effective line period. For details, see the vertical timing

charts for each drive mode.

∗ When SG stopped is selected by the SG stop setting, WEN is inactive during the SG stopped VD period.

∗ When performing long-time exposure with the shutter V setting, WEN is inactive during the SG stopped VD

period.

Special Drive Sequence (Random trigger shutter drive)

Cameras using the CXD3607R can perform random trigger shutter drive which allows image capturing at an

optional timing. The TRIG pulse is loaded from the TRIG pin at the rising edge of MCKO, and reflected from the

falling edge of the next HD.

The random trigger shutter drive sequence in DRAFT mode is shown below.

Not accepted

(1)

DRAFT

DRAFT (TRIG function enabled)

(4) SG generation position setting

(2) High-speed sweep setting

(6) SG and V pulse stopped

(3) SUB setting

TRIGOUT

DRAFT

Not accepted

Exposure A

Exposure C

(5) Clamp pulse stop setting

Exposure C

Main exposure

Exposure

Exposure B

None

Exposure A

(part-way)

Main exposure

TRIG

VD

HD

Mode

V2A

SUB

CCDOUT

XCPOB, XCPDM