MLX90360KGO-ACD Datasheet, PDF (20/35 Pages) Melexis Microelectronic Systems – TriaxisÒ Position Sensor IC

MLX90360
Triaxis^® Position Sensor IC
14.4.2. MAPXYZ
The MAPXYZ parameter defines which fields are used to calculate the angle. The different possibilities
are described in the tables below.
MAPXYZ
0
1
2
3
4
5
Angle definition
∠XY = ∠(k ⋅ B_X , B_Y )
∠YX = ∠(B_X , k ⋅ B_Y )
∠XZ = ∠(k ⋅ B_X , B_Z )
∠ZX = ∠(B_Z , k ⋅ B_Z )
∠YZ = ∠(k ⋅ B_Y , B_Z )
∠ZY = ∠(B_Y , k ⋅ B_Z )
14.4.3. k parameter
The k parameter defines the sensitivity mismatch between the 2 selected axis used for the angular
calculation. Its value is defined through an unsigned 16 bits value from 0.0 to 1.0. Typical values are
between 0.5 and 1.
The MAPXYZ is defined in factory to be 0 or 1. For an end-user XY-application, don’t overwrite this
parameter.
14.4.4. GAINMIN and GAINMAX Parameters
GAINMIN and GAINMAX define the boundaries within the virtual gain setting is allowed to vary. Outside
this range, the output is set in diagnostic mode.
14.5. Filter
Parameter
FILTER
FHYST
FILTERFIRST
Value
0…2
0 … 31
0 or 1
The MLX90360 includes 2 types of filters:
• Hysteresis Filter: programmable by the 47M parameter
• Low Pass FIR Filters controlled with the 4 6 :& parameter
Note: if the parameter FILTERFIRST is set to “1”, the filtering is active on the digital angle (prior to the
output mapping). If set to “0”, the filtering is active on the output transfer function (after the output
mapping).
Melexis recommends to program FILTERFIRST to 1 in order to be compliant with any Linear
compensation on the Output.
MLX90360
Rev. 009
Page 20 of 35
Datasheet
Dec/13