PE4273
Product Specification
Table 5. Single-pin Control Logic Truth Table
Control Voltages
Pin 6 (V2) = V
DD
Pin 4 (V1) = High
Pin 6 (V2) = V
DD
Pin 4 (V1) = Low
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
µProcessor
I/O port.
Complementary-pin control mode
allows the
switch to operate using complementary control
pins V1 and V2 (pins 4 & 6), that can be directly
driven by +3-volt CMOS logic or a suitable
µProcessor
I/O port. This enables the PE4273 to
operate in positive control voltage mode within the
PE4273 operating limits.
Signal Path
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
Document No. 70-0174-03
│
www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 3 of 10
PEREGRINE [ PEREGRINE SEMICONDUCTOR CORP. ]
