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MRF176GU Datasheet, PDF (3/10 Pages) Motorola, Inc – N-CHANNEL MOS BROADBAND RF POWER FETs | |||
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ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted)
Characteristic
Symbol
FUNCTIONAL CHARACTERISTICS â MRF176GU (1) (Figure 2)
Common Source Power Gain
Gps
(VDD = 50 Vdc, Pout = 150 W, f = 400 MHz, IDQ = 2.0 x 100 mA)
Drain Efficiency
η
(VDD = 50 Vdc, Pout = 150 W, f = 400 MHz, IDQ = 2.0 x 100 mA)
Electrical Ruggedness
Ï
(VDD = 50 Vdc, Pout = 150 W, f = 400 MHz, IDQ = 2.0 x 100 mA,
VSWR 10:1 at all Phase Angles)
NOTE:
1. Measured in pushâpull configuration.
Min
Typ
Max
Unit
12
14
â
dB
45
50
â
%
No Degradation in Output Power
A
B
C17 L7
C18
L8
BIAS
C11
C12
R1
C13
C15
R2
C19
50 V
L1
C1
B1
C3
L2
C2
Z1
C4
Z2
D.U.T.
R3
C9
Z3
L3
C6
C5
C8
B2
C7
C10
Z4
L4
L6
A
C14
B
C16
B1 â Balun, 50 ⦠Semirigid Coax .086 OD 2â³ Long
B2 â Balun, 50 ⦠Semirigid Coax .141 OD 2â³ Long
C1, C2, C9, C10 â 270 pF ATC Chip Capacitor
C3 â 15 pF ATC Chip Cap
C4, C8 â 1.0 â 20 pF Piston Trimmer Cap
C5 â 27 pF ATC Chip Cap
C6, C7 â 22 pF Mini Unelco Capacitor
C11, C13, C14, C15, C16 â 0.01 µF Ceramic Capacitor
C12 â 1.0 µF 50 V Tantalum Cap
C17, C18 â 680 pF Feedthru Capacitor
.200
C19 â 10 µF 100 V Tantalum Cap
L1, L2 â Hairpin Inductor #18 W
L3, L4 â Hairpin Inductor #18 W
.200â³
.400â³
.200â³
Ckt Board Material â .060â³ teflonâfiberglass, copper clad both sides, 2 oz. copper,
εr = 2.55
L5, L6 â 13T #18 W .250 ID
L7 â Ferroxcube VKâ200 20/4B
L8 â 3T #18 W .340 ID
R1 â 1.0 k⦠1/4 W Resistor
R2, R3 â 10 k⦠1/4 W Resistor
Z1, Z2 â Microstrip Line .400L x .250W
Z3, Z4 â Microstrip Line .450L x .250W
Figure 2. 400 MHz Test Circuit
MOTOROLA RF DEVICE DATA
MRF176GU MRF176GV
3
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