M52957AFP

Rev.1.0, Sep.19.2003, page 9 of 13

(3)CLALV

This terminal sets up clamp level.

As including D/A of 4bit, 16way clamp level setting is possible by inputting clock after reset is canceled(include none

clamp).

Set up current value of each bit is on

the right table.

The number of input clock and set up

clamp level is as follows.

bit

Set up current (Typ.)

1

0.125 nA

2

0.25 nA

3

0.5 nA

4

1.0 nA

Clock value

Clamp level(Typ.)

0

None clamp

1

0.125 nA

2

0.250 nA

3

0.375 nA

4

0.500 nA

5

0.625 nA

6

0.750 nA

7

0.875 nA

8

1.000 nA

9

1.125 nA

10

1.250 nA

11

1.375 nA

Clock value

Clamp level(Typ.)

12

1.500 nA

13

1.625 nA

14

1.750 nA

15

1.875 nA

16

None clamp

17

0.125 nA

18

0.250 nA

19

0.375 nA

20

0.500 nA

Clamp level is established with fall edge of input clock.

It repeats the same value after 16 clock.

(4) HOLD INT

These terminals implement the following controls by inputting HIGH/LOW.

a. CINT rapid charge ON , OFF

b. CHrapid charge ON , OFF

c. Stationary light hold ON , OFF

d. The first integration ON , OFF

e. The second integration ON , OFF

Stationary light hold

The first

integration

The second

integration

Reset canceled

HOLD

INT

CINT

rapid charge

CH

rapid charge