SP3238 Ver la hoja de datos (PDF) - Signal Processing Technologies

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componentes Descripción

fabricante

SP3238

Intelligent +3.0V to +5.5V RS-232 Transceiver

Signal Processing Technologies 

a) C2+

1

2

2

[

T

T

]

+6V

0V

0V

b) C2-

T

-6V

Ch1 2.00V Ch2 2.00V M 1.00µs Ch1 1.96V

Figure 13. Charge Pump Waveforms

Figure 14. Charge Pump — Phase 3

VCC = +5V

+

C1 –

–5V

+5V

+

C2 –

–5V

C4

+ – VDD Storage Capacitor

– + VSS Storage Capacitor

C3

VCC = +5V

+

C1 –

+10V

+

C2 –

Figure 15. Charge Pump — Phase 4

C4

+ – VDD Storage Capacitor

– + VSS Storage Capacitor

C3

Rev. 6/30/03

SP3238 Intelligent +3.0V to +5.5V RS-232 Transceiver

12

© Copyright 2003 Sipex Corporation

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