MRF141 datasheet(5/10 Pages) MACOM

Part #	MRF141

Description	N-CHANNEL BROADBAND RF POWER MOSFET

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Manufacturer	MACOM [Tyco Electronics]

Direct Link	http://www.macom.com

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5 / 10 page

Figure 11. Input and Output Impedances

Figure 12. 175 MHz Test Circuit (Class AB)

C1, C2, C8 — Arco 463 or equivalent

C3 — 25 pF, Unelco

C4 — 0.1

µF, Ceramic

C5 — 1.0

µF, 15 WV Tantalum

C6 — 25 pF, Unelco J101

C7 — 25 pF, Unelco J101

C9 — Arco 262 or equivalent

C10 — 0.05

µF, Ceramic

C11 — 15

µF, 35 WV Electrolytic

L1 — 3/4

″, #18 AWG into Hairpin

L2 — Printed Line, 0.200

″ x 0.500″

L3 — 7/8

″, #16 AWG into Hairpin

L4 — 2 Turns, #16 AWG, 5/16 ID

RFC1 — 5.6

µH, Molded Choke

RFC2 — VK200–4B

R1 — 150

Ω, 1.0 W Carbon

R2 — 10 k

Ω, 1/2 W Carbon

R3 — 120

Ω, 1/2 W Carbon

C7

+

R1

C4

R2

RF INPUT

L1

C8

C9

DUT

+ 28 V

RF

OUTPUT

L3

BIAS

0 – 12 V

C5

+

–

C11

C10

RFC1

L2

C2

C3

L4

C1

C6

R3

150

15

30

7.5

2

100

f = 175 MHz

ZOL*

Zin

VDD = 28 V

IDQ = 250 mA

Pout = 150 W PEP

ZOL* = Conjugate of the optimum load impedance

ZOL* = into which the device output operates at a

ZOL* = given output power, voltage and frequency.

Zo = 10 Ω

f = 175 MHz

2

30

100

4

5

REV 9

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