TLE4941-2 Datasheet, PDF (3/8 Pages) Infineon Technologies AG – Differential Two-Wire Hall Effect Sensor IC

TLE4941-2, TLE4941-2C Supplement
Transition to calibrated mode:
In the calibrated mode the output will switch at zero-crossing of the input signal. The
phase shift between input and output signal is no longer determined by the ratio
between digital noise constant and signal amplitude. Therefore a sudden change in
the phase shift may occur during the transition from uncalibrated to calibrated mode.
Calibrated mode:
See TLE4941 data sheet.
Additional notes:
Unlike the TLE 4941 the first output edge might occur before the first zero-crossing of
the magnetic input signal. Therefore the maximum number of edges until the
calibrated mode is active is increased by one for TLE4941-2. However, referring to
the input signal the delay between star-up of the signal and first calibrated output
signal is identical with TLE4941.
Typically the phase error due to PGA-transition (row 7 to 15) reduces the error
caused by switching the mode from uncalibrated to calibrated.
The summed up change in phase error from the first output edge issued to the output
edges in calibrated mode will not exceed +/- 90°.
TLE4941-2 - TLE4941-2C
3
Datasheet supplement
February 2002