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TLE4942-2 Datasheet(PDF) 3 Page - Infineon Technologies AG |
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TLE4942-2 Datasheet(HTML) 3 Page - Infineon Technologies AG |
3 / 9 page TLE4942-2, TLE4942-2C Supplement TLE4942-2 - TLE4942-2C Data sheet supplement February 2002 3 Calibrated mode: See TLE4942 data sheet. Additional notes: Unlike the TLE4942 the first output pulse 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 TLE4942-2. However, referring to the input signal the delay between startup of the signal and first calibrated output signal is identical with TLE 4942. Typically the phase error due to PGA-transition (row 7 to 15) reduces the error caused by switching the mode from uncalibrated to calibrated. In very rare cases a further PGA switching can occur during the calibration process. It can take place when the signal is extremely close to a PGA switching threshold. This additional switching might delay the transition to calibrated mode by two to three more pulses. The probability of this case is mainly depending on variations of magnetic amplitude under real automotive conditions. (See appendix B) The direction detection feature is active in the calibrated mode only. Therefore identical to TLE4942 the correct direction information is available after the first three output pulses in calibrated mode. Regarding the rare case mentioned before combined with other initial conditions this may lead to a worst case of 11 pulses before correct direction information is guaranteed. The typical value is 5 pulses. |
Similar Part No. - TLE4942-2 |
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