DESCRIPTION
A rotating magnetic field in the x-y plane will produce two independent sinusoidal output signals, one a function of +cos(2α) and the second a function of +sin(2α), α being the angle between sensor and field direction (see Fig.3). Unlike the KMZ41(1), which needs a saturation field strength of 100 kA/m, the KMZ43T is suited to high precision angle measurement applications under low field conditions (saturation field strength 25 kA/m). The information in application notes AN00023 (Contactless Angle Measurement Using KMZ41 and UZZ9000) and AN00004 (Contactless Angle Measurement Using KMZ41 and UZZ9001) is applicable to the KMZ43T, but one should be aware of the difference in the bridge 1 output. pin 1 index KMZ43T PINNING PIN 1 2 3 4 5 6 7 8 SYMBOL −VO1 −VO2 VCC2 VCC1 +VO1 +VO2 GND2 GND1 DESCRIPTION
output voltage bridge 1 output voltage bridge 2 supply voltage bridge 2 supply voltage bridge 1 output voltage bridge 1 output voltage bridge 2 ground 2 ground 1 handbook, halfpage 8 5 x y 1 4 MGD790 (1) The KMZ41 delivers a +sin(2α) and a −cos(2α) signal.
NXP Semiconductors
