MLX90363 Datasheet, PDF (39/57 Pages) Melexis Microelectronic Systems – Triaxis® Magnetometer IC With High Speed Serial Interface

MLX90363
Triaxis® Magnetometer IC
With High Speed Serial Interface
17. MLX90363 Description of End-User Programmable Items
17.1. User Configuration: Device Orientation
MAPXYZ
0
1
2
3
4
5
Assignment
B1 = X, B2 = Y, B3 = Z
B1 = X, B2 = Z, B3 = Y
B1 = Y, B2 = Z, B3 = X
B1 = Y, B2 = X, B3 = Z
B1 = Z, B2 = X, B3 = Y
B1 = Z, B2 = Y, B3 = X
Note
Use mode 0 instead
The values B1, B2 and B3 are inputs to the 2D/3D formula (see section 17.2).
The field coordinates X, Y, Z are relative to the device (See Section 23.3 and 23.6). The parameter
MAPXYZ selects the application-dependent mapping of (X, Y, Z) to (B1, B2, B3).
17.2. User Configuration: Magnetic Angle Formula
Parameter 3D
0
1
Formula
Alpha
=
arctan_{}
B2
B1


Alpha = arctan_{}

(KALPHA× B3)² + (KT × B2)² _
B1


Beta = arctan_{}

(KBETA× B3)² + (KT × B1)² _
B2


Note
extended to the full circle
extended across
B1=0 and B2=0
max 180deg
17.3. User Configuration: 3D=0 formula trimming parameters SMISM and
ORTH_B1B2
17.3.1. Magnetic Angle ∠XY
Parameter
SMISM + SEL_MISM
ORTH
ORTH_SEL
MAPXYZ
Address (hex)
1032[15:0]
1038[7:0]
102C[8]
102A[2:0]
Value
Trimmed by MLX
Trimmed by MLX
0
0
This is the default condition as programmed by MLX. In such case, no front-end calibration is needed from
the customer.
3901090363
Rev. 005
Page 39 of 57
Data Sheet
Jul/13