EMS22P - Non-Contacting PWM Encoder

Output Type Waveform and Variant Table

Applications

PWM

R1

C1

C2

R2

analog out

Simple Passive 2nd Order Low Pass Filter

R1, R2

≥ 4.7K Ohms

R1 should be

≥ 4.7K ohms to avoid loading of the PWM output.

Larger values of Rx and Cx will provide better filtering and less

ripple, but will also slow down the response time.

C1, C2

≥ 1 μF / 6 V

Recommended Filter

VSS

PWM Output

Parameter

Symbol

Type

Unit

Note

PWM frequency

fPWM

0.9756

KHz

Signal period: 1025

μs

MIN pulse with

PWMIN

1

μs

Position 0 Angle 0 °

MAX pulse with

PWMAX

1024

μs

Position 1023 Angle 359.65 °

Analog output using an external low pass filter

Vcc

0 V

0 °

360 °

0 deg

(Pos 0)

359.65 deg

(Pos 1023)

1

512

0

1025

1025

t on

t off

Position = t on * 1025/(t on + t off) - 1

Angle

Specifications are subject to change without notice.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.

Users should verify actual device performance in their specific applications.