MRF148 datasheet(3/6 Pages) MACOM

3 / 6 page

Figure 2. Power Gain versus Frequency

Figure 3. Output Power versus Input Power

Figure 4. IMD versus Pout

Figure 5. Common Source Unity Gain Frequency

versus Drain Current

Figure 6. 150 MHz Test Circuit

C1 — 91 pF Unelco Type MCM 01/010

C2, C4 — 0.1

µF Erie Red Cap

C3 — Allen Bradley 680 pF Feed Thru

C5 — 1.0

µF, 50 Vdc Electrolytic

C6 — 15 pF Unelco Type J101

C7 — 24 pF Unelco Type MCM 01/010

L1 — 2 Turns #18 AWG, 5/16

″ ID

L2 — 4 Turns #18 AWG, 5/16

″ ID

R1 — 1.0 Ohm, 1/4 W Carbon

R2 — 2000 Ohm, 1/4 W Carbon

RFC1 — VK200 21/4B

T1 — 4:1 Transformer, 1.75

″ Subminiature

T1 — Coaxial Cable

T1 — 4:1 Impedance Ratio

T1 — Transformer, Line

T1 — Impedance = 25

Ω

+ BIAS

+ 50 Vdc

RF OUTPUT

RF INPUT

DUT

RFC1

Ω

12.5

Ω

f, FREQUENCY (MHz)

200

100

VDD = 50 V

IDQ = 100 mA

Pout = 30 W (PEP)

Pin, INPUT POWER (WATTS)

0.5

1.5

2.5

VDD = 50 V

40 V

VDD = 50 V

40 V

IDQ = 100 mA

Pout, OUTPUT POWER (WATTS PEP)

–30

–40

–50

–30

–40

–50

010

VDD = 50 V, IDQ = 100 mA, TONE SEPARATION 1 kHz

2000

1000

ID, DRAIN CURRENT (AMPS)

VDS = 15 V

VDS = 30 V

0–6 V

Replaces MRF148/D

MRF148 Datasheet(PDF) 3 Page - Tyco Electronics

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