R2
C2
+
C3
-
R3
C4
1
AMP 1
OUT
2 AMP 2
(-)IN
R4
3 AMP 2
OUT
AMP 1 16
(-)IN
AMP 1 15
(+)IN
R5
C5
+-
C8
R7
R6
C6
+-
R10 R9
C7
R8
C9
5V REG 14
OUT
R1
+
- C1
LS6501LP
PIR
SENSOR 1
PIR
SENSOR 2
R1 = 36kΩ
R2 = 2.7MΩ
R3 = 36kΩ
R4 = 2.7MΩ
R5 = 36kΩ
R6 = 36kΩ
R7 = 36kΩ
R8 = 36kΩ
R9 = 5.6MΩ
R10 = 5.6MΩ
C1 = 100µF
C2 = .01µF
C3 = 33µF
C4 = .01µF
C5 = 33µF
C6 = 33µF
C7 = .01µF
C8 = .1µF
C9 = .1µF
PIRs = HEIMANN LHi 958 or 878 (Typical)
All Resistors 1/4 W. All Capacitors 10V
NOTE: A pair of PIR Sensors may be used in applications where a wider optical field of view is needed.
FIGURE 5. LS6501LP DIFFERENTIAL INTERFACE TO PIR SENSOR PAIR
6501-070202-7
The information included herein is believed to be
accurate and reliable. However, LSI Computer Systems,
Inc. assumes no responsibilities for inaccuracies, nor for
any infringements of patent rights of others which may
result from its use.