MRF422 datasheet(2/4 Pages) MACOM

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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 = 5.0 Adc, VCE = 5.0 Vdc)

hFE

120

—

DYNAMIC CHARACTERISTICS

Output Capacitance

(VCB = 28 Vdc, IE = 0, f = 1.0 MHz)

Cob

—

420

—

FUNCTIONAL TESTS

Common–Emitter Amplifier Power Gain

(VCC = 28 Vdc, Pout = 150 W (PEP), IC(max) = 6.7 Adc,

ICQ = 150 mAdc, f = 30, 30.001 MHz)

GPE

—

Collector Efficiency

(VCC = 28 Vdc, Pout = 150 W (PEP), IC(max) = 6.7 Adc,

ICQ = 150 mAdc, f = 30, 30.001 MHz)

—

Intermodulation Distortion (1)

(VCE = 28 Vdc, Pout = 150 W (PEP), IC = 6.7 Adc,

ICQ = 150 mAdc, f = 30, 30.001 MHz)

IMD

—

–33

–30

Output Power

(VCE = 28 Vdc, f = 30 MHz)

Pout

150

—

Watts

(PEP)

NOTE:

1. To Mil–Std–1311 Version A, Test Method 2204, Two Tone, Reference each Tone.

Figure 1. 30 MHz Test Circuit Schematic

C1, C2, C3, C5 — 170–680 pF, ARCO 469

C4 — 80–480 pF, ARCO 466

C6, C8, C11 — ERIE 0.1

µF, 100 V

C7 — MALLORY 500

µF, 15 V Electrolytic

C9 — UNDERWOOD 1000 pF, 350 V

C10 — 10

µF, 50 V Electrolytic

R1 — 10

Ω, 25 Watt Wire Wound

R2 — 10

Ω, 1.0 Watt Carbon

CR1 — 1N4997

L1 — 3 Turns, #16 Wire, 5/16

″ I.D., 5/16″ Long

L2 — 10

µH Molded Choke

L3 — 12 Turns, #16 Enameled Wire, Close Wound, 1/4

″ Dia.

L4 — 5 Turns, 1/8

″ Copper Tubing

L5 — 10 Ferrite Beads — FERROXCUBE #56–590–65/3B

BIAS

CR1

D.U.T.

28 Vdc

C10

C11

REV 6

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