MRF650 Datasheet, PDF (2/6 Pages) Motorola, Inc – RF POWER TRANSISTOR NPN SILICON

ELECTRICAL CHARACTERISTICS — continued (TC = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
FUNCTIONAL TESTS (In Motorola Test Fixture. See Figure 1.)
Common–Emitter Amplifier Power Gain
(VCC = 12.5 Vdc, Pout = 50 W, f = 440, 470 MHz)
Common–Emitter Amplifier Power Gain
(VCC = 12.5 Vdc, Pout = 50 W, f = 512 MHz)
Input Return Loss
(VCC = 12.5 Vdc, Pout = 50 W, f = 440, 470, 512 MHz)
Collector Efficiency
(VCC = 12.5 Vdc, Pout = 50 W, f = 440, 470 MHz)
Collector Efficiency
(VCC = 12.5 Vdc, Pout = 50 W, f = 512 MHz)
Output Mismatch Stress
(VCC = 15.5 V, 2.0 dB Overdrive, f = 470 MHz,
VSWR = 20:1, All Phase Angles) (1)
Gpe
Gpe
IRL
η
—
ψ (2)
5.2
6.1
—
dB
5.0
5.9
—
dB
10
15
—
dB
55
65
—
%
50
60
—
%
No Degradation in Output Power
NOTES:
1. Pin = 2.0 dB above drive requirement for 50 W output at 12.5 Vdc.
2. ψ = Mismatch stress factor — the electrical criterion established to verify the device resistance to load mismatch failure. The mismatch stress
test is accomplished in the standard test fixture (Figure 1) terminated in a 20:1 minimum load mismatch at all phase angles.
∆ VRE
PORT
R1
B1
B2
B3
+
C1
C2
C3
B4
SOCKET
B6
B7
R2
B8
+12.5 Vdc
B5
C6
C7
+
C8
RF INPUT
50 Ω
TL1
N1
C9 ^TL3
TL2
C10
L1
TL4 TL5 TL6
C4
C5
D.U.T.
C12 C13
C11
L2
TL7 TL8 TL9
TL10 C16 TL12
RF
OUTPUT
50 Ω
N2
C14
C15
TL11
B1, B8 — Ferrite Bead Ferroxcube VK200 20–4B
B2, B3, B4, B5, B6, B7 — Ferrite Bead Ferroxcube #56–590–3B
C1, C8 — 10 µF, 25 V, 25%, Electrolytic, ECS TE–1204
C2, C7 — 1000 pF, Chip Cap, 5%, ATC 100B102JC50
C3, C6 — 91 pF, 5%, Mica, SAHA 3HS0006–91
C4, C5, C12, C13 — 36 pF, 5%, SAHA 3HS0006–36
C9, C16 — 220 pF, Chip Cap, 5%, ATC 100B221JC200
C10, C11, C15 — 0.8 – 10 pF, Variable, Johanson JMC501 PG26J200
C14 — 1.0 – 20 pF, Variable, Johanson JMC5501 PG26J200
L1, L2 — 3 Turns, 18 AWG, 0.19″ ID — Total Length 3.5″
N1, N2 — N Coaxial Conn., Omni–Spectra 3052–1648–10
R1, R2 — 10 Ohm, 10%, 1.0 W, Carbon, RCA 831010
TL1, TL12 — Zo = 50 Ohm
TL2 — See Photomaster
TL3 — See Photomaster
TL4 — See Photomaster
TL5 — See Photomaster
TL6 — See Photomaster
TL7 — See Photomaster
TL8 — See Photomaster
TL9 — See Photomaster
TL10 — See Photomaster
TL11 — See Photomaster
Transmission Line Boards: 1/16″ Glass–Teflon
Transmission Line Boards: Keene GX–0600–55–22
Transmission Line Boards: 2 oz. Cu Clad Both Sides
Transmission Line Boards: ε_r = 2.55
Bias Boards: 1/16″ G10 or Equivalent
Bias Boards: 2 oz. Cu Clad Double Sided
Figure 1. 440 to 512 MHz Broadband Test Circuit Schematic
MRF650
2
MOTOROLA RF DEVICE DATA