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TSH345IPT 数据表(PDF) 6 Page - STMicroelectronics |
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TSH345IPT 数据表(HTML) 6 Page - STMicroelectronics |
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6 / 14 page ![]() Power supply considerations TSH345 6/14 3 Power supply considerations Correct power supply bypassing is very important for optimizing performance in low and high-frequency ranges. Bypass capacitors should be placed as close as possible to the IC pin (pin 4) to improve high-frequency bypassing. A capacitor (CLF) greater than 100 µF is necessary to improve the PSRR in low frequencies. For better quality bypassing, you can add a capacitor of 470 nF (CHF), also placed as close as possible to the IC pin, to improve the PSRR in the higher frequencies. Figure 1. Circuit for power supply bypassing +VCC CLF + CHF R in G in B in TSH345 R out G out B out 4 5 |
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