Data Sheet

5

V 1.1

2017-10

TLE5309D

Dual GMR/AMR Angle Sensor

Functional description

With the trigonometric function ARCTAN2, the true 360° angle value that is represented by the relation of X and

Y signals can be calculated according to Equation (1).

(1)

The ARCTAN2 function is a microcontroller library function which resolves an angle within 360° using the x and

y coordinates on a unit circle.

Figure 3

Ideal output of the GMR sensor bridges

V

Angle

α

90°

180°

270°

360°

0°

Y Component (SIN)

X Component (COS)

0°

90°