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MPC5673K датащи(PDF) 81 Page - Freescale Semiconductor, Inc |
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MPC5673K датащи(HTML) 81 Page - Freescale Semiconductor, Inc |
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81 / 140 page ![]() Electrical characteristics MPC5675K Microcontroller Data Sheet, Rev. 4 Preliminary—Subject to Change Without Notice Freescale Semiconductor 81 3.13 16 MHz RC oscillator electrical characteristics 3.14 ADC electrical characteristics The MPC5675K provides a 12-bit Successive Approximation Register (SAR) Analog-to-Digital Converter. Figure 8. ADC characteristics and error definitions Table 23. RC oscillator electrical characteristics No. Symbol Parameter Conditions Min Typ Max Unit 1fRC CC RC oscillator frequency 27 °C, 1.2 V trimmed —16— MHz 2 RCMVAR CC Frequency spread: The variation in output frequency from PTF1 across temperature and supply voltage range NOTES: 1 PTF = Post Trimming Frequency: The frequency of the output clock after trimming at typical supply voltage and temperature. —— — ±5 % 3 IRCTRIM CC Internal RC oscillator trimming step TA = 25 °C — 1.6 — % (2) (1) (3) (4) (5) Offset Error OSE Offset Error OSE Gain Error GE 1 LSB (ideal) Vin(A) (LSBideal) (1) Example of an actual transfer curve (2) The ideal transfer curve (3) Differential non-linearity error (DNL) (4) Integral non-linearity error (INL) (5) Center of a step of the actual transfer curve code out 4095 4094 4093 4092 4091 4090 5 4 3 2 1 0 7 6 1 2 3 4 5 6 7 4089 40904091 40924093 4094 4095 1 LSB ideal =(VrefH-VrefL)/ 4096 = 3.3 V/ 4096 = 0.806 mV Total Unadjusted Error TUE = ±6 LSB = ±4.84 mV |
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