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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STA333IS 데이터시트(PDF) 38 Page - STMicroelectronics |
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STA333IS 데이터시트(HTML) 38 Page - STMicroelectronics |
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38 / 43 page  Application information STA333IS 38/43 DocID022855 Rev 3 6 Application information 6.1 Application scheme for power supplies Figure 11 below shows a typical application scheme for the STA333IS. Special care has to be taken with regard to the power supplies when laying out the PCB. In particular the 3.3- Ω resistors on the digital supplies (VDD_DIG) have to be placed as close as possible to the device. This prevents unwanted oscillation on the digital parts of the device due to the inductive effects of the PCB tracks. The same rule also applies to all the decoupling capacitors; they should be placed as close as possible to the device in order to limit the effect of spikes on the supplies. Figure 11. Application diagram |
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