MRF326 Datasheet, PDF (2/6 Pages) Motorola, Inc – BROADBAND RF POWER TRANSISTOR NPN SILICON

ELECTRICAL CHARACTERISTICS — continued (TC = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
FUNCTIONAL TESTS (Figure 1)
Common–Emitter Amplifier Power Gain
(VCC = 28 Vdc, Pout = 40 W, f = 400 MHz, IC Max = 2.85 Adc)
Collector Efficiency
(VCC = 28 Vdc, Pout = 40 W, f = 400 MHz, IC Max = 2.85 Adc)
Load Mismatch
(VCC = 28 Vdc, Pout = 40 W CW, f = 400 MHz,
VSWR = 30:1 All Phase Angles)
GPE
η
ψ
9.0
11
—
dB
50
—
—
%
No Degradation in Output Power
RF
INPUT
Z1
C1
Z2
C2
C3
L2
R3
C13
L1
DUT
C9
L3
Z3
L4
R2
C5
C4
C12
R1
C11
+
L5
+
28 Vdc
C10
–
C7
Z4
RF
OUTPUT
C6
C8
C1 — 1.0 – 10 pF Johanson, Capacitor (JMC 5201)
C2, C3, C6, C8 — 1.0– 20 pF Johanson Capacitor
C4, C5 — 36 pF ATC “B” Style Chip Capacitor
C7, C9, C13 — 100 pF UNELCO Capacitor
C11 — 680 pF Feedthru
C10 — 1.0 µF 50 V Tantalum
C12 — 0.1 µF Erie Redcap
L1 — 8 Turns #26 AWG Enameled, 1/16″ ID Closewound
L2, L5 — Ferroxcube VK200–19/4B Ferrite Choke
L3 — 8 Turns #20 AWG Enameled, 1/4″ ID Closewound
L4 — 4 Turns #26 AWG 0.1″ ID
R1 — 10 Ohm 2.0 W Carbon
R2, R3 — 10 Ohm 1.0 W Carbon
Z1 — Microstrip 0.19″ W x 1.28″ L
Z2 — Microstrip 0.28″ W x 1.0″ L
Z3 — Microstrip 0.31″ W x 1.0″ L
Z4 — Microstrip 0.31″ W x 0.9″ L
Board — Glass Teflon ε_r = 2.56 t = 0.062″
Input/Output Connectors — Type N UG58 A/U
Figure 1. 400 MHz Test Amplifier
MRF326
2
MOTOROLA RF DEVICE DATA