tle5011 Infineon Technologies Corporation, tle5011 Datasheet - Page 21

• Manufacturer Part Number: tle5011
• Description: Gmr Based Angular Sensor
• Manufacturer: Infineon Technologies Corporation

Offset Correction
After the X and Y values are read out, the temperature corrected offset value must be
subtracted.
Amplitude Normalization
Next, the X and Y values are normalized using the peak values determined in the
calibration.
Non-Orthogonality Correction
The influence of the non-orthogonality can be compensated using following equation, in
which only the Y channel must be corrected.
Resulting Angle
After correction of all errors, the resulting angle can be calculated using the arctan
function
1)
Target Data Sheet
Microcontroller function “arctan2(Y
1)
.
Y
3
α
,X
3
2
)” to resolve 360°
=
=
X
Y
arc
Y
------------------------------------------ -
1
1
X
Y
2
2
2
=
=
–
tan
X
cos
=
=
21
X
Y
2


–
–
------
A
------
A
X
Y
×
Y
------
X
– ( )
Y
X
1
O
1
O
3
2
sin
Electrical and Magnetic Parameters
ϕ


Y
X
–
– ( )
ϕ
ϕ
X
V 0.11, 2008-01
TLE5011