MRF141 Ver la hoja de datos (PDF) - Motorola => Freescale

Número de pieza

componentes Descripción

Fabricante

MRF141

RF Power Field-Effect Transistor

Motorola => Freescale 

Zo = 10 Ω

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.

15

7.5

4

Zin

2

30

100

30

150

100

2

f = 175 MHz

ZOL* f = 175 MHz

Figure 11. Input and Output Impedances

BIAS

0 – 12 V

RF INPUT

R1

C4

C1

+

C5

R3

L1

C2

C3

R2

RFC1

+ 28 V

L4

C10

+

– C11

DUT

L3

L2

C9

RF

OUTPUT

C6

C7

C8

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 kΩ, 1/2 W Carbon

R3 — 120 Ω, 1/2 W Carbon

Figure 12. 175 MHz Test Circuit (Class AB)

MOTOROLA RF DEVICE DATA

MRF141

5

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