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SP3223EBCA/TR датащи(PDF) 15 Page - Sipex Corporation

номер детали SP3223EBCA/TR
подробное описание детали  Intelligent 3.0V to 5.5V RS-232 Transceivers
PDF  23 Pages
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производитель  SIPEX [Sipex Corporation]
домашняя страница  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP3223EBCA/TR датащи(HTML) 15 Page - Sipex Corporation

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Date:
10/06/06
SP3223 +3.0V to +5.5V RS-232 Transceivers
© Copyright 200
6 Sipex Corporation
ripple on the transmitter outputs and may slightly
reduce power consumption. C2, C3, and C4 can
be increased without changing C1’s value
For best charge pump efficiency locate the charge
pump and bypass capacitors as close as possible
to the IC. Surface mount capacitors are best for
this purpose.
Using capacitors with lower
equivalent series resistance (ESR) and self-
inductance, along with minimizing parasitic PCB
trace inductance will optimize charge pump
operation. Designers are also advised to consider
that capacitor values may shift over time and
operating temperature.
The Sipex-patented charge pumps are designed
to operate reliably with a range of low cost
capacitors.Either polarized or non polarized
capacitors may be used. If polarized capacitors
are used they should be oriented as shown in the
Typical Operating Circuit. The V+ capacitor
may be connected to either ground or Vcc
(polarity reversed.)
The charge pump operates with 0.1
µF capacitors
for 3.3V operation. For other supply voltages,
see the table for required capacitor values. Do
not use values smaller than those listed.
Increasing the capacitor
values (e.g., by doubling in value) reduces
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