MRF1090MB datasheet(2/4 Pages) MACOM

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

Characteristic

Symbol

Min

Typ

Max

Unit

DYNAMIC CHARACTERISTICS

Output Capacitance

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

Cob

—

FUNCTIONAL TESTS (Pulse Width = 10

µs, Duty Cycle = 1.0%)

Common–Base Amplifier Power Gain

(VCC = 50 Vdc, Pout = 90 W pk, f = 1090 MHz)

GPB

8.4

10.8

—

Collector Efficiency

(VCC = 50 Vdc, Pout = 90 W pk, f = 1090 MHz)

—

Load Mismatch

(VCC = 50 Vdc, Pout = 90 W pk, f = 1090 MHz,

VSWR = 10:1 All Phase Angles)

No Degradation in Power Output

Figure 1. 1090 MHz Test Circuit

C1, C2 — 220 pF Chip Capacitor, 100–mil ATC

C3 — 0.1

µF

C4 — 47

µF/75 V

L1, L2 — 3 Turns #18 AWG, 1/8

″ ID

Z1–Z9 — Distributed Microstrip Elements,

See Photomaster

Board Material — 0.031

″ Thick Glass Teflon, εr = 2.5

OUTPUT

DUT

INPUT

50 Vdc

Figure 2. Output Power versus Input Power

Figure 3. Output Power versus Frequency

120

100

Pin, INPUT POWER (WATTS pk)

120

100

f, FREQUENCY (MHz)

VCC = 50 V

tp = 10 µs

D = 1%

7.5 W pk

4.5 W pk

9 W pk

6 W pk

Pin = 10.5 W pk

f = 960 MHz

1090 MHz

1215 MHz

VCC = 50 V

tp = 10 µs

D = 1%

960

1090

1215

REV 0

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