LR38581

3

PIN DESCRIPTION

PIN NO. SYMBOL

I/O

POLARITY

PIN NAME

DESCRIPTION

1

OBCP

O4MA3

Optical black clamp

pulse output

A pulse to clamp the optical black signal. This pulse stays

low during the absence of effective pixels within the vertical

blanking. The polarity can be changed by PLCH (pin 39).

2

CLP

O4MA3

AD input signal

clamp pulse output

A pulse to clamp the AD input signal. The polarity can

be changed by PLCH (pin 39).

3

PBLK

O4MA3

Pre-blanking pulse

output

A pulse that corresponds to the cease period of the

horizontal transfer pulse.

4

FS

O4MA32

CDS pulse output 1

A pulse to sample-hold the signal from CCD.

The polarity can be changed by PLCH (pin 39).

The output phase of FS is selected by serial data.

5

FCDS

O4MA32

CDS pulse output 2

A pulse to clamp the feed-through level from CCD.

The polarity can be changed by PLCH (pin 39).

The output phase of FCDS is selected by serial data.

6

RS

O4MA32

S/H pulse output

A pulse to sample-hold the signal from CDS circuit.

The polarity can be changed by PLCH (pin 39).

The output phase of RS is selected by serial data.

A grounding pin.

Ground

–

GND

7–

–

ICSU3

Shift register clock

input

An input pin for the clock of the shift register, to control

the functions of LR38581. For details, see "Serial Data

Control."

–

–

Power supply

Supply of +3.3 V power.

An input pin for the data of the shift register, to control

the functions of LR38581. For details, see "Serial Data

Control."

Shift register data

input

ICSU3

10

–

–

11

ICSU3

Strobe pulse input

An input pin for the strobe pulse, to control the functions

of LR38581. For details, see "Serial Data Control."

An input pin to select mirror or normal image mode

L level

: Normal image mode

H level or open

: Mirror image mode

Mirror mode

selection

ICU3

MIR

12

–

MIR

L (Normal mode)

H or open (Mirror mode)

–

13

ICD5

Test pin 1

A test pin. Set open or to L level in the normal mode.

A test pin. Set open or to L level in the normal mode.

Test pin 2

ICD5

14

–

–

15

–

Power supply

Supply of +5 V power.

16

O4MA52

Vertical transfer

pulse output 1

A pulse to drive vertical CCD shift register.

A pulse to drive vertical CCD shift register.

Vertical transfer

pulse output 3

O4MA52

18

A pulse to drive vertical CCD shift register.

Vertical transfer

pulse output 2

O4MA52

17