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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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SP3220EB 数据表(PDF) 13 Page - Sipex Corporation |
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SP3220EB 数据表(HTML) 13 Page - Sipex Corporation |
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13 / 19 page  13 Rev: A Date:12/11/03 SP3220EB/EU +3.0 to +5.0V RS-232 Transceivers © Copyright 2002 Sipex Corporation VCC = +5V –5V –5V +5V VSS Storage Capacitor VDD Storage Capacitor C1 C2 C3 C4 + + ++ – – – – Figure 15. Charge Pump — Phase 1 Figure 16. Charge Pump — Phase 2 VCC = +5V –10V VSS Storage Capacitor VDD Storage Capacitor C1 C2 C3 C4 + + ++ – – – – Figure 17. Charge Pump Waveforms Figure 18. Charge Pump — Phase 3 VCC = +5V –5V +5V –5V VSS Storage Capacitor VDD Storage Capacitor C1 C2 C3 C4 + + ++ – – – – VCC = +5V +10V VSS Storage Capacitor VDD Storage Capacitor C1 C2 C3 C4 + + ++ – – – – Figure 19. Charge Pump — Phase 4 Ch1 2.00V Ch2 2.00V M 1.00µs Ch1 5.48V 2 1 T T [] T +6V a) C2+ b) C2- GND GND -6V |
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