EK4259-01(2016) Просмотр технического описания (PDF) - Peregrine Semiconductor
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EK4259-01 Datasheet PDF : 10 Pages
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Table 5. Single-pin Control Logic Truth Table
Control Voltages
Signal Path
Pin 6 (VDD) = VDD
Pin 4 (CTRL) = High
RFC to RF1
Pin 6 (VDD) = VDD
Pin 4 (CTRL) = Low
RFC to RF2
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
Thermal Data
Psi-JT (JT), junction top-of-package, is a thermal
metric to estimate junction temperature of a de-
vice on the customer application PCB (JEDEC
JESD51-2).
JT = (TJ – TT)/P
Where
JT = junction-to-top of package characterization
parameter, °C/W
TJ = die junction temperature, °C
TT = package temperature (top surface, in the
center), °C
P = power dissipated by device, Watts
Table 7. Thermal Data
Parameter
Maximum junction temperature, TJMAX
(RF input power, CW = 31.5 dBm, +85 °C
ambient)
JT
JA, junction-to-ambient thermal resistance
Typ
Unit
99
°C
37
°C/W
104 °C/W
©2005-2016 Peregrine Semiconductor Corp. All rights reserved.
Page 4 of 10
PE4259
Product Specification
Control Logic Input
The PE4259 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 Processor I/O port.
Complementary-pin control mode allows the
switch to operate using complementary control
pins CTRL and CTRL (pins 4 and 6), that can be
directly driven by +3-volt CMOS logic or a suitable
Processor I/O port. This enables the PE4259 to
be used as a potential alternate source for SPDT
RF switch products used in positive control
voltage mode and operating within the PE4259
operating limits.
Document No. DOC-03694-3 │ UltraCMOS® RFIC Solutions
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