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SP3222EUET-L Datasheet(PDF) 11 Page - Exar Corporation |
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SP3222EUET-L Datasheet(HTML) 11 Page - Exar Corporation |
11 / 20 page Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com SP3222EU/SP3232EU_102_031413 11 Figure 15. Charge Pump — Phase 2 VCC = +5V VSS Storage Capacitor VDD Storage Capacitor C1 C2 C3 C4 + + + + – – – – -5.5V VCC = +5V –5V –5V +5V VSS Storage Capacitor VDD Storage Capacitor C1 C2 C3 C4 + + + + – – – – Figure 14. Charge Pump — Phase 1 Figure 17. Charge Pump — Phase 3 VCC = +5V –5V –5V +5V VSS Storage Capacitor VDD Storage Capacitor C1 C2 C3 C4 + + + + – – – – Figure 18. Charge Pump — Phase 4 VCC = +5V VSS Storage Capacitor VDD Storage Capacitor C1 C2 C3 C4 + + + + – – – – +5.5V Figure 16. Charge Pump Waveforms 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 DESCRIPTION |
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