EMS22A50-R16-LS6 datasheet(2/5 Pages) BOURNS

2 / 5 page

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

EMS22A - Non-Contacting Absolute Encoder

Output Type Waveform and Variant Table

Applications

■ Material handling equipment

■ Brushless DC motor commutation

■ Robotics

■ Automotive

■ Industrial automation

■ Petroleum reﬁnery

■ Medical

■ Ofﬁce equipment

■ Audio and broadcast equipment

CSn

CLK

t CSn 500 ns min.

t CLKFE

500 ns

t D0 Tristate

100 ns min.

T CLK/2 500 ns

Status Bits

Angular Position Data

Parity Bit

t D0 valid 375 ns

t D0 active

100 ns

D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 S1 S2 S3 S4 S5 P1

EMS22

μC

1st Device

Data IN

PROG

CLK

CSn

CLK

CSn

CLK

Daisy Chain Hardware Configuration

Daisy Chain Mode Data Transfer

CLK

CSn

2nd Device

Last Device

EMS22

CSn

CLK FE

DO active

CLK/2

CLK

Angular Position Data

Even

PAR

Mag

DEC

Mag

INC

LIN

COF

OCF

DO valid

Angular Position Data

Status Bits

2nd Device

1st Device

Data Content

Description

D9:D0

Absolute angular position data

End of offset compensation algorithm

Cordic overﬂow indicating an error in cordic part

Linearity alarm

Increase in magnitude

Decrease in magnitude

Even parity for detecting bits 1-15 transmission error

Absolute Output

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