4 SIREN

4 種警報聲 IC

1/2

2003-12-12

SIREN

M3740B

TAIPEI : TEL : 886-2- 22783733

FAX : 886-2- 22783633

H.K.

: TEL : 852-

27569109

FAX : 852-

27566961

HORN

一華半導體股份有限公司

MOSDESIGN SEMICONDUCTOR CORP.

FEATURES 功能敘述

• 4 programmable sound outputs.

• LED blinking output.

• Priority : K1>K2>K3>K4.

APPLICATION 產品應用

• Alarm system, toys etc..

ELECTRICAL CHARACTERISTICS 電氣規格

( @V

Characteristics

Sym.

Min.

Typ.

Max.

Unit

REMARKS

工作電壓 Operating Voltage

V

DD

1.5

2.5

─

V

工作電流 Operating Current

I

OP

─

0.1

0.5

mA

No load

靜態電流 Quiescent Current

I

SB

─

1

5

μA

推動電流 BZ Driving Current

I

O

1

─

─

mA

@ V

推動電流 LO Driving Current

I

OL

2

─

─

mA

@ V

振盪頻率 Oscillator Frequency

F

OSC

─

128

─

KHz

External±30%, Rosc=130KΩ

工作溫度 Operating Temperature

Temp.

0

25

60

℃

APPLICATION DIAGRAM 參考電路圖

*All specs and applications shown above subject to change without prior notice.

( 以上電路及規格僅供參考,本公司得逕行修正 )

KEY

M3740B

K1

ALARM

K2

POLICE

K3

FIRE

K4

AMBULANCE

M3740B-L16P

VSS

VDD

BZ

LO

X

Y

LH

TEST

K4

K3

K2

K1

1

16

8

9

VSS

VDD

BZ

K4

K2

TEST

X

Y

M3740B-L8P

1

8

4

5

VDD

LH

K1

VSS

M3740B

底=VDD

Y

Rosc

X

LO

BZ

K2

K3

K4