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STM32F078CB 数据表(PDF) 83 Page - STMicroelectronics |
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STM32F078CB 数据表(HTML) 83 Page - STMicroelectronics |
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83 / 120 page  DocID026006 Rev 4 83/120 STM32F078CB, STM32F078RB, STM32F078VB Electrical characteristics 95 Figure 25. ADC accuracy characteristics Figure 26. Typical connection diagram using the ADC 1. Refer to Table 55: ADC characteristics for the values of RAIN, RADC and CADC. 2. Cparasitic represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the pad capacitance (roughly 7 pF). A high Cparasitic value will downgrade conversion accuracy. To remedy this, fADC should be reduced. General PCB design guidelines Power supply decoupling should be performed as shown in Figure 12: Power supply scheme . The 10 nF capacitor should be ceramic (good quality) and it should be placed as close as possible to the chip. |
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