RF MOSFET Power Transistor, 2OW, 28V 100 - 500 MHz
Features
N-Channel Enhancement DMOS Structure Lower Capacitances for Broadband Operation Devices High Saturated Output Power Lower Noise Figure Than Competitive .. Mode Device
UF2820R
Absolute Maximum Ratings at 25°C
Parameter Drain-SourceVoltage Gate-Source Voltage Drain-Source Current Power Dissipation Junction Temperature StorageTemperature Thermal Resistance 1 Symbol 1 VOS VGS IOS
PO
Rating 6.5 20 4 61 200 -55 to +150 2.66
Units V V A w “C “C “C/W
T TST0 8JC
Electrical Characteristics
at 25°C
Input Capacitance Output Capacitance Reverse Capacitance Power Gain Drain Efficiency Load Mismatch Tolerance Cass CRss GP
00
V,,=28.0 V, F=l .OMHz 30 8 10 50 2O:l PF PF dB % V,,=28.0 V, F=l .OMHz V,,=28.0 V, F=l .OMHz V,,=28.0 V, 1,,=100.0 mA, P,fl20.0 V,,=28.0 V, I,,=1 00.0 mA, P,s20.0 V,,=28.0 V, l,,=lOO.O mA, P,e20.0 W, F=500 MHz W, F=500 MHz W, F=500 MHz
VSWR-T
Specifications Subject
to Change
Without Notice.
MIA-COM,
North America: Tel. (800) 366-2266 Fax (800) 618-8883
n
Inc.
Asia/Pacific:
Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451
=
Europe:
Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020
RF MOSFET Power Transistor,
2OW, 28V
UF2820R
v2.00
Typical Broadband
Performance
Curves
EFFICIENCY
I’,,=28 ‘OF
GAIN vs FREQUENCY
VD,=28 V I,,=1 00 mA PO,,,=20 W
vs FREQUENCY
W
V IDD=l 00 mA PO,=20
10 100
.T
I
200
300 FREQUENCY (MHz)
400
5w
100
200
300 FREQUENCY (MHz)
500
POWER OUTPUT
25
vs POWER INPUT
mA
25
POWER OUTPUT vs POWER INPUT
V,,=28 V
I,,=1 00 mA
V,,=28
V I,,=100
0
01
0.1
0.2
0.3
0.5
1.0
1.5
2.0
0.1
02
0.3
0.5
1.0
1.5
2.0
POWER INPUT (W)
POWER INPUT(W)
NOISE FIGURE
vs FREQUENCY
00 mA
VDo=28 V I,,=1
Specifications
Subject to Change Without Notice.
IWA-COM, Inc.
North America: Tel. Fax (800) (800) 366-2266 618-8883 m Asia/Pacific: Tel. Fax +81 (03) 3226-1671 +81 (03) 3226-1451 m Europe: Tel. Fax +44 (1344) +44 (1344) 869 595 300 020
RF MOSFET Power Transistor,
2OW, 28V
U F2820R
v2.00
Typical Device Impedance
Frequency (MHz) 100 200 300 400 500
z,, (OHMS) 8.0-j 16.0 5.5 - j 8.0 4.0 - j 3.8 3.0 - j 2.0 2.0 + J 1.O V,,=28 V, I,,=100 mA, P,,,=20.0 Watts
z LoAD (OHMS) 12.O+j6.0 9.3 + j 6.0 6.8 + j 5.5 4.5 + J 4.5 3.0 + j 3.0
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 source. is
RF Test Fixture
VDD A P
VGG VGG J3
0 Q
-
RF RF IN .Jl
PARTS LlS7 c1,c&c10 c7 cz.c5 M w ca c9 Cl1 Cl.2 L1 L2 L3 L4 ls L6 Rl 07 BOARD CAPACITOR CAPACITOR CAPACiTOR CAPACVOR 1QF 2DpF 25pF S4OpF CAPA’XOR SOOPF 0.1 uF CAPACITOR 1ooOpF
FEEDTHROUGH MONOLITHIC ELEcTROLYnC 0.25.X
CERAMIC
CAPACITOR
CAPACTOR
5OuF 50 VOLTS
0.63 HAIRPIN.
NO. 22 AWG LINE UNE
0.25’ X 0.20’ MICROSTRIP 0.2SX 0.40’ MICROSTRIP
0.30 X 0.06’ HAIRPIN.
NO. 16 AWG
6 TURNS OF NC. 20 AWG ON ‘0.30’. CLOSE WOUND 12 NRNS RESISTOR UF262DR FPd o.oe OF NO. 20 AWG ON ‘OLW. CLOSE WOUND 72K OWS 025 WAlT
Specifications
Subject to Change Without Notice.
M/A-COM, Inc.
North America: Tel. (800) 366-2266 Fax (800) 618-8883
n
Asia/Pacific:
Tel. +81 (03) 3226-1671 Fax +81 (03) 3226-1451
n
Europe:
Tel. +44 (1344) 869 595 Fax +44 (1344) 300 020