NXP Semiconductors MPC5777M Datasheet

Also see for MPC5777M: Safety manual

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NXP Semiconductors MPC5777M Datasheet Manual pdf 66 page image

MPC5777M Microcontroller Data Sheet, Rev. 6Electrical characteristicsNXP Semiconductors663.11 Temperature sensorThe following table describes the temperature sensor electrical characteristics.3.12 LVDS Fast Asynchronous Serial Transmission (LFAST) padelectrical characteristicsThe LFAST pad electrical characteristics apply to both the SIPI and high-speed debug serial interfaces on the device. The sameLVDS pad is used for the Microsecond Channel (MSC) and DSPI LVDS interfaces, with different characteristics given in thefollowing tables.13 Impedance given at FADCD_M = 16 MHz. Impedance is inversely proportional to SDADC clock frequency.Z DIFF(FADCD_M) = (16 MHz / FADCD_M ) * Z DIFF, Z CM (FADCD_M) = (16MHz / FADCD_M ) * Z CM .14 Input impedance in single-ended mode Z IN = (2 * ZDIFF * Z CM ) / (Z DIFF + ZCM ).15 Impedance given at FADCD_M = 16 MHz. Impedance is inversely proportional to SDADC clock frequency.Z DIFF(FADCD_M) = (16 MHz / FADCD_M ) * Z DIFF, Z CM (FADCD_M) = (16MHz / FADCD_M ) * Z CM .16 Vintcm is the common mode input reference voltage for the SDADC, and has a nominal value of (V DD_HV_ADC -VSS_HV_ADC) / 2.17 SNR values guaranteed only if external noise on the ADC input pin is attenuated by the required SNR value in thefrequency range of fADCD_M – fADCD_S to fADCD_M + fADCD_S , where f ADCD_M is the input sampling frequency, andf ADCD_S is the output sample frequency. A proper external input filter should be used to remove any interfering signalsin this frequency range.18 The ±1% passband ripple specification is equivalent to 20 * log 10 (0.99) = 0.087 dB.19 Propagation of the information from the pin to the register CDR[CDATA] and flags SFR[DFEF], SFR[DFFF] is given bythe different modules that need to be crossed: delta/sigma filters, high pass filter, fifo module, clock domainsynchronizers. The time elapsed between data availability at pin and internal S/D module registers is given by thebelow formula:REGISTER LATENCY = tLATENCY + 0.5/fADCD_S + 2 (~+1)/fADCD_M + 2(~+1)fPBRIDGEx_CLKwhere fADCD_S is the frequency of the sampling clock, fADCD_M is the frequency of the modulator, andfPBRIDGEx_CLK is the frequency of the peripheral bridge clock feeds to the ADC S/D module. The (~+1) symbolrefers to the number of clock cycles uncertainty (from 0 to 1 clock cycle) to be added due to resynchronization of thesignal during clock domain crossing.Some further latency may be added by the target module (core, DMA, interrupt) controller to process the data receivedfrom the ADC S/D module.20 This capacitance does not include pin capacitance, that can be considered together with external capacitance, beforesampling switch.Table 29. Temperature sensor electrical characteristicsSymbol Parameter ConditionsValueUnitMin Typ Max— CC Temperature monitoring range — –40 — 150 °CT SENS CC Sensitivity — — 5.18 — mV/°CTACC CC Accuracy T J  150 °C –3 — 3 °CI TEMP_SENS CC V DD_HV_ADV_S power supplycurrent— — — 700 μA