MRF327 Datasheet, PDF (2/5 Pages) Motorola, Inc – BROADBAND RF POWER TRANSISTOR NPN SILICON

ELECTRICAL CHARACTERISTICS – continued (T_C = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
FUNCTIONAL TESTS (Figure 1)
Common–Emitter Amplifier Power Gain
(V_CC = 28 Vdc, P_out = 80 W, f = 400 MHz)
Collector Efficiency
(V_CC = 28 Vdc, P_out = 80 W, f = 400 MHz)
Load Mismatch
(V_CC = 28 Vdc, P_out = 80 W, f = 400 MHz,
VSWR = 30:1 All Phase Angles)
G_PE
7.3
9.0
—
dB
η
50
60
—
%
ψ
No Degradation in Output Power
RF
INPUT
Z1
C1
C2
R2
L2
C12
L3
C13
+
- ^C14
+ _VCC
C15
- ^{28 Vdc}
L4
L1
DUT
L5
R1
C11
Z2
C10
Z3
RF
OUTPUT
C5 C6
C7
C8
C9
C3 C4
C1, C2, C7, C8, C9 — 1.0ā–ā20 pF Piston Trimmer (Johanson JMC 5501)
L4 — 6 Turns #20 AWG Enameled, 3/16″ ID Closewound
C3, C4 — 36 pF ATC 100 mil Chip Capacitor
L5 — 4 Turns #22 AWG Enameled, 1/8″ ID Closewound
C5, C6 — 43 pF ATC 100 mil Chip Capacitor
Z1 — Microstrip 0.2″ W x 1.5″ L
C10 — 100 pF UNELCO
Z2 — Microstrip 0.17″ W x 1.16″ L
C11, C15 — 0.1 µF Erie Redcap
Z3 — Microstrip 0.17″ W x 0.63″ L
C12, C13 — 680 pF Feedthru
R1, R2 — 10 Ω 2.0 Watt
C14 — 1.0 µF 50 V Tantalum
Board — Glass Teflon ε_r = 2.56, t = 0.062″
L1 — 4 Turns #22 AWG Enameled, 3/16″ ID Closewound with Ferroxcube Input/Output Connectors Type N
L1 — Bead (#56–590–65/4B) on Ground End of Coil
L2 — Ferroxcube VK200–19/4B Ferrite Choke
DUT Socket Lead Frame Etched from 80–mil–Thick Copper
L3 — 7 Turns #18 AWG, 11/16″ Long, Wound on a 100 kΩ 2.0 Watt Resistor
Figure 1. 400 MHz Test Circuit
REV 1
2