MLX90365 Datasheet, PDF (19/35 Pages) Melexis Microelectronic Systems – Triaxis® Position Sensor IC

MLX90365
Triaxis® Position Sensor IC
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.
360°
0°
The placement of the discontinuity
point (0 point) is programmable.
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.
MLX90365
Rev. 5.7
Figure 9
Page 19 of 35
Datasheet
Jan. 22, 16