SM3502 Просмотр технического описания (PDF) - Samhop Mircroelectronics

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SM3502

FAN CONTROLLER

Samhop Mircroelectronics 

三合微科股份有限公司

SAMHOP Microelectronics Corp.

SM3502

FAN CONTROLLER

I. BUZZER

Any key pressed on panel which will generate a 4KHz 50% duty cycle pulse train on buzzer

output pin.

a. When FAN is from stop mode to start mode (press SPEED key)

Buzzer output will generate a "BI-BI" sound.

a

b

c

b. When FAN is from start mode to stop mode (press OFF key)

Buzzer output will generate a long "BI" sound.

d

c. When FAN is operating (press any key other than OFF key)

Buzzer output will generate a "BI" sound.

e

When a = c = e = 62ms

b = 124ms

d = 250ms

Page 7

V.1.0

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