LF2805A Datasheet, PDF (3/3 Pages) Tyco Electronics – RF MOSFET Power Transistor, 5W, 28V 500 - 1000 MHz

RF MOSFET Power Transistor, 5W. 28V
Typical Device Impedance
Frequency (MHz)
500
1000
1400
q,, (OHMS)
4.3 - j 29.0
2.2 - j 2.75
2.8 + j 3.0
v,,=28 V, iDo= mA, P,,=5.0 Watts
zLOA(DOHMS)
27.3 + j 28.6
8.0 + j 16.0
9.4+j 10.6
Z,, is the series equivalent input impedance of the device from gate to source.
z, ^{OAB$ the optimum series equivalent load impedance as measured from drain to ground.}
RF Test Fixture
LF2805A
v2.00
POWER SUPPLY
JACK <3 PLACES)
7
SUBS1 RATE .031’ THICK, Er = 2.54
50 OHM RF CUNNECTOR
r ,015 uf (4 PLACES>
LlK OHMS l/8 WATT
10 TURNS UF 18 AWG WIRE (2 PLACES)
INPUT
560 pf
L-^,180
I-
1.740
L-560 pf