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2004-04-26
DC PIR CONTROLLER
WITH REMOTE CONTROL
PIR CONTROLLER
M7613
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
Encoder oscillator input pin, connect to external R to generate 38KHz Encoder frequency.
Delay timing and Latch timing oscillator input pin, connect to external RC to obtain desired delay duration.
Variable delay(latch) duration can be obtained by selecting various values of RC or using a variable resistor.
The PIR signal amplifier needs a warm up period after power-on, so during this time the input should be disabled
Rs
1.1MΩ
Fig.1
Encoder Oscillator
RD
CD
Fig.2
Timing Oscillator
Fig.3
PIR Amplifier Block Diagram
OP1
OP2
VCP
VCN
comparator
OP1N
OP1O
OP1P
OP2P
OP2O
OP2N