TLE5010 datasheet(20/56 Pages) INFINEON

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TLE5010

Electrical and Magnetic Parameters

Draft

Preliminary Data Sheet

V 0.9, 2007-05

5.5

Angle Calculation

5.5.1

Components of the Output Signals

The X and Y signals at the output can be described with following equations:

AX : Amplitude of X (= cos) Signal

AY : Amplitude of Y (= sin) Signal

OX : Offset of X (= cos) Signal

OY : Offset of Y (= sin) Signal

X : Phase error of X (= cos) Signal

Y : Phase error of Y (= sin) Signal

5.5.2

GMR Error Compensation

Temperature dependent Offset Value

To increase the accuracy, the temperature dependent offset drift can be compensated.

The temperature of the chip has to be read out. The Offset values

OX and OY have to

be multiplied with the Offset temperature coefficient and the temperature value.

OX25 , OY25 : Offset value at 25°C in digits

T25 : Temperature value at 25°C in digits

T : Temperature value in digits

ST : Sensitivity of the temperature measurement path, (see chapter “Temperature

Measurement” on Page 46).

αϕ

()

cos

αϕ

()

sin

X25

--------------

–

()

Y25

--------------

–

()

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