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F1108 Datasheet

PATENTED GOLD METALIZED SILICON GATE ENHANCEMENT MODE RF POWER VDMOS TRANSISTOR

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polyfet rf devices
F1108
General Description
Silicon VDMOS and LDMOS
transistors designed specifically
for broadband RF applications.
Suitable for Military Radios,
Cellular and Paging Amplifier Base
Stations, Broadcast FM/AM, MRI,
Laser Driver and others.
"Polyfet"TM process features
gold metal for greatly extended
lifetime. Low output capacitance
and high F t enhance broadband
performance
PATENTED GOLD METALIZED
SILICON GATE ENHANCEMENT MODE
RF POWER VDMOS TRANSISTOR
80 Watts Gemini
Package Style AK
HIGH EFFICIENCY, LINEAR,
HIGH GAIN, LOW NOISE
ABSOLUTE MAXIMUM RATINGS (TC = 25 Co)
Total
Device
Dissipation
Junction to
Case Thermal
Resistance
Maximum
Junction
Temperature
Storage
Temperature
DC Drain
Current
Drain to
Gate
Voltage
Drain to
Source
Voltage
Gate to
Source
Voltage
170 Watts
0.95 oC/W
200 oC
-65oC to 150oC
8A
70 V
70V 30V
RF CHARACTERISTICS ( 80WATTS OUTPUT )
SYMBOL PARAMETER
MIN TYP MAX UNITS TEST CONDITIONS
Gps Common Source Pow er Gain
11
dB Idq = 0.8 A, Vds = 28.0 V, F = 400 MHz
η Drain Efficiency
55 % Idq = 0.8 A, Vds = 28.0 V, F = 400 MHz
VSWR Load Mismatch Tolerance
20:1 Relative Idq = 0.8 A, Vds = 28.0 V, F = 400 MHz
ELECTRICAL CHARACTERISTICS (EACH SIDE)
SYMBOL PARAMETER
MIN TYP MAX UNITS TEST CONDITIONS
Bvdss Drain Breakdow n Voltage
65
V Ids = 0.1 A, Vgs = 0V
Idss Zero Bias Drain Current
2 mA Vds = 28.0V, Vgs = 0V
Igss Gate Leakage Current
1 uA Vds = 0 V, Vgs = 30V
Vgs Gate Bias for Drain Current
1 7 V Ids = 0.2 A, Vgs = Vds
gM Forw ard Transconductance
2 Mho Vds = 10V, Vgs = 5V
Rdson Saturation Resistance
0.7
Ohm
Vgs = 20V, Ids = 8 A
Idsat
Saturation Current
12
Amp
Vgs = 20V, Vds = 10V
Ciss Common Source Input Capacitance
80 pF Vds = 28.0 V, Vgs = 0V, F = 1 MHz
Crss
Common Source Feedback Capacitance
10
pF Vds = 28.0 V, Vgs = 0V, F = 1 MHz
Coss
Common Source Output Capacitance
60 pF Vds = 28.0 V, Vgs = 0V, F = 1 MHz
POLYFET RF DEVICES
REVISION 8/1/97
1110 Avenida Acaso, Camarillo, CA 93012 TEL:(805) 484-4210 FAX:(805) 484-3393 EMAIL:Sales@polyfet.com URL:w w w .polyfet.com
Polyfet RF Devices
Polyfet RF Devices



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