一華半導體股份有限公司
PIR CONTROLLER
MOSDESIGN SEMICONDUCTOR CORP.
DC PIR CONTROLLER
M7613
WITH REMOTE CONTROL
Encoder oscillator input pin, connect to external R to generate 38KHz Encoder frequency.
Rs
1.1MΩ
Fig.1 Encoder Oscillator
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.
RD
CD
Fig.2 Timing Oscillator
The PIR signal amplifier needs a warm up period after power-on, so during this time the input should be disabled
OP1O
OP1
OP1P
comparator
OP1N
VCP
OP2O
OP2
OP2N
OP2P
VCN
Fig.3 PIR Amplifier Block Diagram
3/7
2004-04-26
ETC [ ETC ]
