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4239-01 Datasheet(PDF) 3 Page - Peregrine Semiconductor Corp. |
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4239-01 Datasheet(HTML) 3 Page - Peregrine Semiconductor Corp. |
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3 / 8 page  Product Specification PE4239 Page 3 of 9 ©2002-2006 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0068-02 │ www.psemi.com Control Voltages Signal Path Pin 6 (CTRL or VDD) = VDD Pin 4 (CTRL) = High RFC to RF1 Pin 6 (CTRL or VDD) = VDD Pin 4 (CTRL) = Low RFC to RF2 Table 5. Single-pin Control Logic Truth Table Table 6. Complementary-pin Control Logic Truth Table Control Voltages Signal Path Pin 6 (CTRL or VDD) = Low Pin 4 (CTRL) = High RFC to RF1 Pin 6 (CTRL or VDD) = High Pin 4 (CTRL) = Low RFC to RF2 Control Logic Input The PE4239 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 on pin 6 (VDD). 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 CTRL and CTRL (pins 4 & 6), that can be directly driven by +3-volt CMOS logic or a suitable µProcessor I/O port. This enables the PE4239 to be used as a potential alternate source for SPDT RF switch products used in positive control voltage mode and operating within the PE4239 operating limits. |
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