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an
AMP
company
RF MOSFET
2
-
175
MHz
Features
Power Transistor,
6OW, 28V
DU2860U
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
IWA-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
m
Europe:
Tel. +44 (1344) 869 595
Fax +I4 (1344) 300 020
RF MOSFET Power Transistor, 6OW,
28V
v2.00
Typical Broadband Performance Curves
GAIN vs FREQUENCY
V,,=28
=z
V 1,0=300 mA P,,,.,.=60 W
80 ,
EFFICIENCY
V,,=28
vs FREQUENCY
mA P,,~60
W
V I,,=300
I”
50
.
*
100
150
200
25
50
loo
150
200
FREQUENCY
(MHz)
FREOUENCY
(MHz)
POWER OUTPUT
V,,=20
vs POWER INPUT
mA
1
V I,,=300
”
0
0.5
1
1.5
2
2.5
2.75
3
POWER INPUT(W)
Specifications Subject to Change Without Notice.
M/A-COM,
North America:
Tel. (800)
Fax (800)
366-2266
618-8883
=
Asia/Pacific:
Tel.
Fax
+81
+81
(03) 3226-1671
(03) 3226-1451
n
Inc.
Europe:
Tel.
Fax
+44 (1344)
+44 (1344)
869 595
300 020
RF MOSFET Power Transistor,
6OW, 28v
DU2860U
V2.00
Typical Device impedance
Frequency (MHz)
30
50
100
200
Z,,.,(OHMS)
9.0 - j 4.0
6.0 - j 5.8
4.0 - j 4.2
1.0 -j 1.0
V,,=28 V, I,,=300 mA, PO,,=60 Watts
Z LOAD
(OHMS)
6.0 + j 0.0
5.0 + j 2.0
4.0 + j 3.0
2.Ocj 1.9
Z,, is the series equivalent input impedance of the device from gate to source.
z LOAD the optimum series equivalent load impedance as measured from drain to ground.
is
RF Test Fixture
VDS = 28 VOLTS
IDQ = 3OOmA
VGS
J3
VDS
J4
P
P
L3
RF OUT
RF IN
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Cl
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C7
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I2
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PARTS
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C4,c5
C6,CX
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Ll
I2
L3
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
RI
Ql
BOARD
RESISTOR 300 OHMS 0.5 WAlT
DU2860U
FR4 0.062
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North
America:
Tel.
Fax
(800)
(800)
366-2266
618-8883
n
Asia/Pacific:
Tel.
Fax
+81
+81
(03) 3226-1671
(03)
3226-1451
Europe:
Tel.
Fax
+44 (1344)
+44 (1344)
869 595
300 020