MRF134 datasheet(2/10 Pages) MACOM

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

Characteristic

Symbol

Min

Typ

Max

Unit

OFF CHARACTERISTICS

Drain–Source Breakdown Voltage (VGS = 0, ID = 5.0 mA)

V(BR)DSS

—

Vdc

Zero Gate Voltage Drain Current (VDS = 28 V, VGS = 0)

IDSS

—

1.0

mAdc

Gate–Source Leakage Current (VGS = 20 V, VDS = 0)

IGSS

—

1.0

µAdc

ON CHARACTERISTICS

Gate Threshold Voltage (ID = 10 mA, VDS = 10 V)

VGS(th)

1.0

3.5

6.0

Vdc

Forward Transconductance (VDS = 10 V, ID = 100 mA)

gfs

110

—

mmhos

DYNAMIC CHARACTERISTICS

Input Capacitance

(VDS = 28 V, VGS = 0, f = 1.0 MHz)

Ciss

—

7.0

—

Output Capacitance

(VDS = 28 V, VGS = 0, f = 1.0 MHz)

Coss

—

9.7

—

Reverse Transfer Capacitance

(VDS = 28 V, VGS = 0, f = 1.0 MHz)

Crss

—

2.3

—

FUNCTIONAL CHARACTERISTICS

Noise Figure

(VDS = 28 Vdc, ID = 200 mA, f = 150 MHz)

—

2.0

—

Common Source Power Gain

(VDD = 28 Vdc, Pout = 5.0 W, IDQ = 50 mA)

f = 150 MHz (Fig. 1)

f = 400 MHz (Fig. 14)

Gps

—

10.6

—

Drain Efficiency (Fig. 1)

(VDD = 28 Vdc, Pout = 5.0 W, f = 150 MHz, IDQ = 50 mA)

—

Electrical Ruggedness (Fig. 1)

(VDD = 28 Vdc, Pout = 5.0 W, f = 150 MHz, IDQ = 50 mA,

VSWR 30:1 at all Phase Angles)

No Degradation in Output Power

Figure 1. 150 MHz Test Circuit

C1, C4 — Arco 406, 15–115 pF

C2 — Arco 403, 3.0–35 pF

C3 — Arco 402, 1.5–20 pF

C5, C6, C7, C8, C12 — 0.1

µF Erie Redcap

C9 — 10

µF, 50 V

C10, C11 — 680 pF Feedthru

D1 — 1N5925A Motorola Zener

L1 — 3 Turns, 0.310

″ ID, #18 AWG Enamel, 0.2″ Long

L2 — 3–1/2 Turns, 0.310

″ ID, #18 AWG Enamel, 0.25″ Long

L3 — 20 Turns, #20 AWG Enamel Wound on R5

L4 — Ferroxcube VK–200 — 19/4B

R1 — 68

Ω, 1.0 W Thin Film

R2 — 10 k

Ω, 1/4 W

R3 — 10 Turns, 10 k

Ω Beckman Instruments 8108

R4 — 1.8 k

Ω, 1/2 W

R5 — 1.0 M

Ω, 2.0 W Carbon

Board — G10, 62 mils

R3*

C10

C11

C12

RF INPUT

RF OUTPUT

+VDD = 28 V

DUT

*Bias Adjust

REV 6

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