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RF MOSFET Power Transistor, 6OW, 28V
2 - 175 MHz DU2860U
Features v2.00
A 4Gl.
N-Channel Enhancement Mode Device
DMOS Structure
Lower Capacitances for Broadband Operation
High Saturated Output Power
Lower Noise Figure Than Bipolar Devices
. .
Absolute Maximum Ratings at 25°C
Electrical Characteristics at 25°C
Specifications Subject to Change Without Notice.
IWA-COM, Inc.
North America: Tel. (800) 366-2266 n Asia/Pacific: Tel. +81 (03) 3226-1671 m Europe: Tel. +44 (1344) 869 595
Fax (800) 618-8883 Fax +81 (03) 3226-1451 Fax +I4 (1344) 300 020
RF MOSFET Power Transistor, 6OW, 28V
v2.00
Typical Broadband Performance Curves
GAIN vs FREQUENCY
V,,=28 V 1,0=300 mA P,,,.,.=60 W
=z
EFFICIENCY vs FREQUENCY
80 , V,,=28 V I,,=300 mA P,,~60 W
I” . *
50 100 150 200
FREQUENCY (MHz) 25 50 loo 150 200
FREOUENCY (MHz)
POWER OUTPUT vs POWER INPUT
V,,=20 V I,,=300 mA 1
”
0 0.5 1 1.5 2 2.5 2.75 3
POWER INPUT(W)
Specifications Subject to Change Without Notice. M/A-COM, Inc.
North America: Tel. (800) 366-2266 = Asia/Pacific: Tel. +81 (03) 3226-1671
Fax (800) 618-8883 Fax +81 (03) 3226-1451
n Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
RF MOSFET Power Transistor, 6OW, 28v DU2860U
V2.00
Typical Device impedance
Frequency (MHz)
30
50
100
200
Z,,., (OHMS) Z
LOAD (OHMS)
9.0 - j 4.0 6.0 + j 0.0
6.0 - j 5.8 5.0 + j 2.0
4.0 - j 4.2 4.0 + j 3.0
1.0 -j 1.0 2.Ocj 1.9
V,,=28 V, I,,=300 mA, PO,,=60 Watts
Z,, is the series equivalent input impedance of the device from gate to source.
z LOAD is the optimum series equivalent load impedance as measured from drain to ground.
RF Test Fixture
VDS = 28 VOLTS
IDQ = 3OOmA
VGS
J3
P
RF IN
Jl Cl
VDS
J4
P
L3 RF OUT
Ql I2 C8 J2
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C7 + “7 $ C6
Cl,C3
c2,c9
C4,c5
C6,CX
c7
Ll
I2
L3
RI
Ql
BOARD
PARTS LIST
TRIMMER CAPACITOR 4-4OpF
CAPACITOR 5OpF
FEEDTHROUGH CAPACITOR 0.001 UF
TRIMMER CAPACITOR 9-18OpF
CAPACITOR 15pF
NO. 12 AWG COPPER WIRE X 1.18’ (LOOP 0.5”)
NO. 12 AWG COPPER WIRE X 1’ (LOOP 0.4’)
6 TURNS OF NO. 18 AWG ENAMEL WIRE ON
‘0.25’, CLOSE WOUND
RESISTOR 300 OHMS 0.5 WAlT
DU2860U
FR4 0.062
M/A-COM, Inc.
North America:
Specifications Subject to Change Without Notice.
Tel. (800) 366-2266
Fax (800) 618-8883
n Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451 Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
