LS6511(2002) Просмотр технического описания (PDF) - LSI Computer Systems
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LS6511 Datasheet PDF : 4 Pages
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FIGURE 4. DIFFERENTIAL INTERFACE TO PIR SENSOR PAIR
R2
C2
-
C3
+
R3
C4
1
AMP 1
OUT
AMP 1 14
(-)IN
2 AMP 2
(-)IN
R4
AMP 1 13
(+)IN
3 AMP 2
OUT L S 6 5 1 1
C5
R5
+-
R6
C6
+-
R10 R9
C7
R7
C8
R8 C9
PIR
SENSOR 1
PIR
SENSOR 2
12
5V REG
OUT
V DD
+
C1
-
5V
R1
R1 = 1kΩ
R6 = 36kΩ
C1 = 100µF
R2 = 2.7MΩ
R7 = 36kΩ
C2 = 0.01µF
R3 = 36kΩ
R8 = 36kΩ
C3 = 33µF
R4 = 2.7MΩ
R9 = 5.6MΩ
C4 = 0.01µF
R5 = 36kΩ
R10 = 2.4MΩ
C5 = 33µF
PIRs = HEIMANN LHi 954, 958, 978, 874 or 878 (Typical)
C6 = 33µF
C7 = 0.01µF
C8 = 0.1µF
C9 = 0.1µF
All Resistors 1/4 W. All Capacitors 10V.
NOTES: 1) A pair of PIR Sensors may be used in applications where a wider optical field of view is needed.
2) External 5V Regulator drives the LS6511 and PIR sensor.
DIFF AMP 2 3
OUTPUT
DIFF AMP 2 2
INPUT (-)
DIFF AMP 1 1
OUTPUT
DIFF AMP
INPUT (-)
1
14
DIFF AMP 1 13
INPUT (+)
-
AMP
+
VDD
FIGURE 5. LS6511 BLOCK DIAGRAM
-
AMP
+
WINDOW
COMPARATOR
DIGITAL FILTER RC
4
+
COMP
-
DIGITAL
FILTER
+
COMP
-
DIGITAL
FILTER
DURATION
TIMER RC
6
OUTPUT
DURATION
TIMER
WINDOW
TIMER
(+V)
VDD 11
VSS 10
SHUNT
REGULATOR
(-V)
5 V REGULATOR
OUTPUT
12
CONCURRENT PULSE/
DUAL PULSE RC 5
UNDERVOLTAGE
DETECTOR
PROGRAMMABLE
RETRIGGERABLE
ONE-SHOT
PROGRAMMABLE
RETRIGGERABLE
ONE-SHOT
6511-102402-4
MODE
SELECT
7
DRIVER
9 LED/RELAY
OUTPUT
M
U
X
DRIVER
8 LED/RELAY
OUTPUT
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