AS5040
Data Sheet
Figure 9: Hysteresis Window for Incremental Outputs
Incremental
Output
Indication
X +4
Hysteresis:
0.7°
X +3
X +2
X +1
X
X X +1 X +2 X +3 X +4 X +5
Clockwise Direction
Counterclockwise Direction
Magnet Position
9 Pulse Width Modulation (PWM) Output
The AS5040 provides a pulse width modulated output (PWM), whose duty cycle is proportional to the measured
angle:
( ) Position = ton ⋅1025 −1
ton + toff
The PWM frequency is internally trimmed to an accuracy of ±5% (±10% over full temperature range). This tolerance
can be cancelled by measuring the complete duty cycle as shown above.
Figure 10: PWM Output Signal
Angle
0 deg
(Pos 0)
PWMIN
1µs
359.65 deg
(Pos 1023)
PWMAX
1/fPWM
1025µs
1024µs
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