Driver circuit for photodiode array with amplifier

C9118 series

4

s Pin assignment of I/O connector

<CN1>

For connection to S8865-64

or S8865-128 photodiode arrays

Connector type: 801-93-012-20-001 PRECI-DIP (made by DURTAL) or equivalent

Pin No.

Terminal Name

I/O

Description

1

RESET

O

Sensor scan start signal. Pulse width at High level nearly equals sensor integration

time.

2

CLK

O

Sensor scan sync signal. Sensor starts scanning in synchronization with this signal.

3

Trig

I

For A/D conversion timing signals. Positive logic

4

EXTST

O

High level at first stage during parallel or serial readout. At second and subsequent

stages during serial readout, this outputs the EOS pulse of preceding stage.

5Vms

O

High level at first stage during parallel or serial readout. At second and subsequent

stages, this sets to Low level.

6

Vdd

O

Sensor supply voltage

7

GND

-

Sensor GND

8

EOS

I

EOS (end of scan) signal of sensor. Negative logic

9

Video

I

Video output signal. Positive polarity

10

Vref

O

Reference voltage

11

Vgain

O

Sensor gain switching

H: high gain, L: low gain

12

Vpd

O

Photodiode voltage

<CN2>

Used to connect the first stage to an external I/O during parallel readout or serial readout

For the second and subsequent stages during serial readout, CN2 is used to connect to CN3 at preceding stage.

Note 1) CN3 is installed only for C9118-01 (for serial readout).

Connector type: DF13-10P-1.25H (50) (made by Hirose Electric)

Pin No.

Terminal Name

I/O

Description

1

M-RESET

I

Sensor scan start signal. Pulse width at High level nearly equals sensor integration

time.

2

M-CLK

I

Sensor scan sync signal. Sensor and circuit start operating in synchronization with this

signal.

3

TRIGGER

O

For A/D conversion timing signals. Positive logic

4

L-EOS

O

EOS (end of scan) signal of all sensors during parallel or serial readout. Negative logic

5

IN-START

I

NC (no connection) at first stage during parallel or serial readout. At second and

subsequent stages during serial readout, this receives the EOS pulse of preceding

stage.

6

GAIN

I

External setting for sensor gain

H: high gain, L: low gain

7GND

-

Circuit GND

8

+5 V

I

+5 V power supply

9

VIDEO

O

Video output signal. Positive polarity

10

A.GND

O

Video GND