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PE4273
Product Specification
Figure 4. Maximum Operating Input Power 1
Note: 1. Operating within DC limits ( Table 3 )
Table 5. Single-pin Control Logic Truth Table
Control Voltages Signal Path
Control Logic Input
The PE4273 is a versatile RF CMOS switch that
supports two operating control modes; single-pin
control mode and complementary-pin control
mode.
Single-pin control mode enables the switch to
operate with a single control pin (pin 4) supporting
a +3-volt CMOS logic input, and requires a
dedicated +3-volt power supply connection
(pin 6). This mode of operation reduces the
number of control lines required and simplifies the
switch control interface typically derived from a
CMOS μ Processor I/O port .
Complementary-pin control mode allows the
switch to operate using complementary control
pins V1 and V2 (pins 4 and 6), that can be directly
driven by +3-volt CMOS logic or a suitable
μ Processor I/O port. This enables the PE4273 to
operate in positive control voltage mode within the
PE4273 operating limits.
Pin 6 (V2) = V DD
Pin 4 (V1) = High
Pin 6 (V2) = V DD
Pin 4 (V1) = Low
RFC to RF1
RFC to RF2
Table 6. Complementary-pin Control Logic
Truth Table
Control Voltages
Pin 6 (V2) = Low
Pin 4 (V1) = High
Pin 6 (V2) = High
Pin 4 (V1) = Low
Signal Path
RFC to RF1
RFC to RF2
?2005-2012 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0174-05 │ UltraCMOS ? RFIC Solutions
Page 4 of 12
Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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