t
High
duration of high voltage
t
Low
duration of the low voltage
T
Period
one full frequency cycle
Duty Cycle = (t
High
/ T
Period
) ?100%
V
CC
at Various Duty Cycles
4 約 per division
H10% Duty Cycle
(Low Clamp)
H 50% Duty Cycle
H 90% Duty Cycle
(High Clamp)
Unidirectional Field Detection
Duty Cycle Field Detection
10%
0 G
10%-90% 0 to +n G (south)
Bidirectional Field Detection
Duty Cycle Field Detection
50%
0 G
50%-90% 0 to +n G (south)
50%-10% 0 to n G (north)
t
High
T
Period
t
Low
t
High
T
Period
t
Low
t
High
T
Period
t
Low
High Precision 2-Wire Linear Hall Effect Sensor IC
with Pulse Width Modulated Output
A1354
8
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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