KA3050 查看數據表（PDF） - Fairchild Semiconductor

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KA3050

Camera Motor Drive and Control IC

Fairchild Semiconductor 

Application Information

1. Zoom And Reel Motor Drive Block (1.5-Channel Dc Motor Drive Block)

KA3050

VE

MC1~MC4

DC Motor Control

DM3

20

DM2

21

Block

SC1~SC4

DM1

22

M

M

This block diagram describes the driver of zoom and reel motor in camera systems.

The drive block is controlled by MC1~4 and SC1~4, which are come from micro controller.

Follow is the control logic table.

INPUT

OUTPUT

MC1

MC2

MC3

MC4

SC1

SC2

SC3

SC4

DM1

DM2

DM3

L

L

H

L

H

-

L

H

L

H

L

-

L

H

H

L

L

-

L

L

L

L

L

H

L

H

-

H

L

H

H

L

-

L

H

H

H

H

-

L

L

11

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