AS5045

Data Sheet

www.austriamicrosystems.com

Revision 1.7

16 – 33

Figure 7. Daisy Chain Mode Data Transfer

D11

1

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

OCF COF

LIN

Mag

INC

Mag

DEC

D11

D

18

8

Status Bits

Angular Position Data

t

DO valid

t

DO active

T

CLK/2

t

CLK FE

CSn

DO

CLK

123

Even

PAR

D9

D10

Angular Position Data

9

Pulse Width Modulation (PWM) Output

The AS5045 provides a pulse width modulated output (PWM), whose duty cycle is proportional to the measured

angle:

4097 −

+

⋅

=

off

on

on

t

t

t

Position

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 8. PWM Output Signal

Angle

359.91 deg

(Pos 4095)

0 deg

(Pos 0)

1µs

4097µs

4096µs