MLX90365

Triaxis® Position Sensor IC

MLX90365

Page 19 of 35

Datasheet

Rev. 5.7

Jan. 22, 16

14.2.3. Discontinuity Point (or Zero Degree Point)

The Discontinuity Point defines the 0°point on the circle. The discontinuity point places the origin at any

location of the trigonometric circle. The DP is used as reference for all the angular measurements.

Figure 8 - Discontinuity Point Positioning

14.2.4. 4-Pts LNR Parameters

The LNR parameters, together with the clamping values, fully define the relation (the transfer function)

between the digital angle and the output signal.

The shape of the MLX90365 transfer function from the digital angle value to the output voltage is

described by the drawing below. Six segments can be programmed but the clamping levels are

necessarily flat.

Two, three, or even six calibration points are then available, reducing the overall non-linearity of the IC by

almost an order of magnitude each time. Three to six calibration points will be preferred by customers

looking for excellent non-linearity figures. Two-point calibrations will be preferred by customers looking for

a cheaper calibration set-up and shorter calibration time.

Figure 9

0°

360°

The placement of the discontinuity

point (0 point) is programmable.