LZ9FD34

3

PIN DESCRIPTION

An input pin to control electronic exposure mode, flicker-

less mode and WIND (pin 39) pulse output.

WIND1 : Vertical pulse

WIND2 : Composite pulse (vertical and horizontal)

PIN NO. SYMBOL

I/O

POLARITY

PIN NAME

DESCRIPTION

1

ICD

–

Test pin 1

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

2

ICD

–

Test pin 2

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

3

VRI

ICSU

–

Vertical reset input

An input pin for resetting internal vertical counter.

The input pulse is VSYNC. (negative polarity)

4

TVMD

ICU

–

TV mode selection

input

An input pin to select TV standards.

L level

: EIA mode

H level or open

: CCIR mode

5

CSYN

O

Composite

synchronizing pulse

output

An output pin of composite synchronous signal pulse.

–

–

Power supply

Supply of +5 V power.

7

GND

–

–

Ground

A grounding pin.

8

CBLK

O

Composite blanking

pulse output

An output pin of composite blanking pulse.

9HD

O

Horizontal drive

pulse output

The pulse occurs at the start of every line.

10

VD

O

Vertical drive pulse

output

The pulse occurs at the start of every field.

11

HBLK

O

Horizontal blanking

pulse output

A pulse that corresponds to the cease period of the

horizontal transfer pulse.

12

ICD

Test pin 3

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

–

13

BCP

O

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.

14

ICD

Test pin 4

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

–

15

ICD

Test pin 5

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

–

16

GND

–

Ground

A grounding pin.

–

17

ACLX

ICU

All clear input

An input pin for resetting all internal circuits at power on.

capacitor.

–

18

–

Power supply

Supply of +5 V power.

–

FLMD

Electronic Shutter mode

WIND

L

EIA : 1/60 s, CCIR : 1/50 s WIND1

H

EIA : 1/100 s, CCIR : 1/120 s WIND1

L

Electronic exposure mode WIND1

H

Electronic exposure mode WIND2

19

20

FLMD

ICU

Electronic exposure

and WIND pulse

control input 1

–

EEMD

ICU

Electronic exposure

and WIND pulse

control input 2

–

EEMD

L

L

H

H