MRF175GU1111 Datasheet, PDF (3/10 Pages) Tyco Electronics – N-CHANNEL MOS BROADBAND RF POWER FETs

ELECTRICAL CHARACTERISTICS (T_C = 25°C unless otherwise noted)
Characteristic
Symbol
FUNCTIONAL CHARACTERISTICS — MRF176GU (1) (Figure 2)
Common Source Power Gain
G_ps
(V_DD = 50 Vdc, P_out = 150 W, f = 400 MHz, I_DQ = 2.0 x 100 mA)
Drain Efficiency
η
(V_DD = 50 Vdc, P_out = 150 W, f = 400 MHz, I_DQ = 2.0 x 100 mA)
Electrical Ruggedness
ψ
(V_DD = 50 Vdc, P_out = 150 W, f = 400 MHz, I_DQ = 2.0 x 100 mA,
VSWR 10:1 at all Phase Angles)
NOTE:
1. Measured in push–pull configuration.
Min
Typ
Max
Unit
12
14
—
dB
45
50
—
%
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 — Balun, 50 Ω Semirigid Coax .086 OD 2″ Long
B2 — Balun, 50 Ω Semirigid Coax .141 OD 2″ Long
C1, C2, C9, C10 — 270 pF ATC Chip Capacitor
C3 — 15 pF ATC Chip Cap
C4, C8 — 1.0ā–ā20 pF Piston Trimmer Cap
C5 — 27 pF ATC Chip Cap
C6, C7 — 22 pF Mini Unelco Capacitor
C11, C13, C14, C15, C16 — 0.01 µF Ceramic Capacitor
C12 — 1.0 µF 50 V Tantalum Cap
C17, C18 — 680 pF Feedthru Capacitor
.200
C19 — 10 µF 100 V Tantalum Cap
L1, L2 — Hairpin Inductor #18 W
L3, L4 — Hairpin Inductor #18 W
.200″
.400″
.200″
Ckt Board Material — .060″ teflon–fiberglass, copper clad both sides, 2 oz. copper,
ε_r = 2.55
L5, L6 — 13T #18 W .250 ID
L7 — Ferroxcube VK–200 20/4B
L8 — 3T #18 W .340 ID
R1 — 1.0 kΩ 1/4 W Resistor
R2, R3 — 10 kΩ 1/4 W Resistor
Z1, Z2 — Microstrip Line .400L x .250W
Z3, Z4 — Microstrip Line .450L x .250W
Figure 2. 400 MHz Test Circuit
REV 9
3