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MRF658 Datasheet, PDF (2/6 Pages) Motorola, Inc – RF POWER TRANSISTOR NPN SILICON
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ELECTRICAL CHARACTERISTICS — continued (TC = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
ON CHARACTERISTICS
DC Current Gain
(IC = 10 Adc, VCE = 5.0 Vdc)
hFE
40
85
120
—
DYNAMIC CHARACTERISTICS
Output Capacitance
(VCB = 12.5 Vdc, IE = 0, f = 1.0 MHz)
Cob
—
170
220
pF
FUNCTIONAL TESTS (In Motorola Test Fixture. See Figure 1.)
Output Power
(VCC = 12.5 Vdc, Pin = 25 W, f = 470 & 512 MHz)
Pout
65
—
—
W
Collector Efficiency
(VCC = 12.5 Vdc, Pout = 65 W, f = 470 & 512 MHz)
η
50
60
—
%
Output Mismatch Stress
ψ
(VCC = 15.5 Vdc, Pin = 32 W, f = 512 MHz, VSWR 20:1,
All Phase Angles)
No Degradation in Output Power
DELTA VRE PORT
(NORMALLY SHORTED)
C13 +
10 µF
B1
B2
C14
0.18 µF
C15
L1
C16
C17
SOCKET
B3
B4
C18
L2
C19
0.18 µF
12.5 Vdc
+ C20
10 µF
RF INPUT
N1
C3
C1
C2
C4
D.U.T.
C5
C7
C6
C8
L3
C12
C11
RF OUTPUT
N2
LOAD % = 50 OHMS
B1–B4 — Long Bead, Fair Rite (2743019446)
C1 — 56 pF, Chip Capacitor, Murata Erie
C2 — 1–20 pF Trimmer, Johanson–JMC 5501 PG26J200
C3 — 39 pF, Chip Capacitor, Murata Erie
C4 — 1–20 pF Trimmer, Johanson–JMC 5501
C5 — 33 pF, Miniature Clamped Mica, SAHA
C6 — 33 pF, Miniature Clamped Mica, SAHA
C7 — 33 pF, Miniature Clamped Mica, SAHA
C8 — 27 pF, Miniature Clamped Mica, SAHA
C11 — 1–20 pF Trimmer, Johanson–JMC 5501 PG26J200
C12 — 110 pF, Chip Capacitor, Murata Erie
C13 — 10 µF, 50 V Electrolytic, Panasonic–ECEV1HV100R
C14 — 0.18 µF Chip Capacitor
C15 — 130 pF, Chip Capacitor, Murata Erie
C16 — 130 pF, Chip Capacitor, Murata Erie
C17 — 130 pF, Chip Capacitor, Murata Erie
C18 — 130 pF, Chip Capacitor, Murata Erie
C19 — 0.18 µF Chip Capacitor
C20 — 10 µF, 50 V Electrolytic, Panasonic–ECEV1HV100R
Board — 1/16″ Glass Teflon, εr = 2.55, Keene (GX–0600–55–22)
L1, L2 — 5 Turns, 20 AWG, ID 0.126″
L3 — 2 Turns, 26 AWG, ID 0.073″
N1, N2 — Type N Flange, Omni Spectra (3052–1648–10)
Murata Erie Chip Capacitors —
GRH710COGxxxx100VBE
SAHA Mini Clamped Mica Capacitors — 3HS0006–xx
Figure 1. 512 MHz Test Circuit
MRF658
2
MOTOROLA RF DEVICE DATA
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