MRF429 datasheet(2/5 Pages) MACOM

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ELECTRICAL CHARACTERISTICS — continued (TC = 25°C unless otherwise noted.)

Characteristic

Unit

Max

Typ

Min

Symbol

ON CHARACTERISTICS

DC Current Gain

(IC = 5.0 Adc, VCE = 5.0 Vdc)

hFE

—

DYNAMIC CHARACTERISTICS

Output Capacitance

(VCB = 50 Vdc, IE = 0, f = 1.0 MHz)

Cob

—

220

300

FUNCTIONAL TESTS

Common–Emitter Amplifier Gain

(VCC = 50 Vdc, Pout = 150 W (PEP), IC(max) = 3.32 Adc,

f = 30; 30.001 MHz)

GPE

—

Output Power

(VCE = 50 Vdc, f = 30; 30.001 MHz)

Pout

150

—

W (PEP)

Collector Efficiency

(VCC = 50 Vdc, Pout = 150 W (PEP), IC(max) = 3.32 Adc,

f = 30, 30.001 MHz)

—

Intermodulation Distortion (1)

(VCE = 50 Vdc, Pout = 150 W (PEP), IC = 3.32 Adc)

IMD

—

–35

–32

Electrical Ruggedness

(VCC = 50 Vdc, Pout = 150 W CW, f = 30 MHz,

VSWR 30:1 at all Phase Angles)

No Degradation in Output Power

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, C7 — 170–780 pF, Arco 469

C3, C8, C9 — 0.1

µF, 100 V Erie

C4 — 500

µF @ 6.0 V

C5 — 9.0–180 pF, Arco 463

C6 — 80–480 pF, Arco 466

C10 — 30

µF, 100 V

R1 — 10

Ω, 10 Watt

R2 — 10

Ω, 1.0 Watt

R3 — 5.0 – 3.3

Ω 1/2 Watt Carbon Resistors in Parallel

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 Closewound, 1/4

″ I.D.

L4 — 5 Turns, 1/8

″ Copper Tubing, 9/16″ I.D., 3/4″ Long

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

BIAS

INPUT

OUTPUT

50 Vdc

CR1

DUT

C10

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