FIGURE 5. LS6501LP DIFFERENTIAL INTERFACE TO PIR SENSOR PAIR

R1 = 36kΩ

C1 = 100µF

R2 = 2.7MΩ

C2 = 0.01µF

R3 = 36kΩ

C3 = 33µF

R4 = 2.7MΩ

C4 = 0.01µF

R5 = 36kΩ

C5 = 33µF

R6 = 36kΩ

C6 = 33µF

R7 = 36kΩ

C7 = 0.01µF

R8 = 36kΩ

C8 = 0.1µF

R9 = 5.6MΩ

C9 = 0.1µF

R10 = 5.6MΩ

PIRs = Perkin-Elmer LHi 958, 878; Nicera RE200B, SDA02-54 (Typical)

All Resistors 1/4 W. All Capacitors 10V

6501LP-090806-7

AMP 1

OUT

AMP 1

(-) IN

AMP 2

(-) IN

AMP 1

(+) IN

AMP 2

OUT

5V REG

OUT

C3

R3

C4

R4

1

2

3

14

15

16

R8

C9

R1

C1

PIR

SENSOR 1

R2

C2

LS6501LP

R7

C8

R10

R9

C7

R6

C6

R5

C5

PIR

SENSOR 2

+

-

+

-

+ -

+

-

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.

NOTE: A pair of PIR Sensors may be used in applications where a wider optical field of view is needed.