NPT2021 datasheet(5/9 Pages) MA-COM

5 / 9 page

GaN Wideband Transistor 48 V, 45 W

DC - 2.5 GHz

Rev. V1

NPT2021

M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.

Visit www.macom.com for additional data sheets and product information.

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Parts measured on evaluation board (30-mil thick

RO4350). The PCB’s electrical and thermal ground

is provided using a standard-plated densely packed

via hole array (see recommended via pattern).

Matching is provided using a combination of

lumped elements and transmission lines as shown

in the simplified schematic above. Recommended

tuning solution component placement, transmission

lines, and details are shown on the next page.

Evaluation Board and Recommended Tuning Solution

2.5 GHz Narrowband Circuit

Description

Turning the device ON

1. Set VGS to the pinch-off (VP), typically -5 V.

2. Turn on VDS to nominal voltage (48 V).

3. Increase VGS until the IDS current is reached.

4. Apply RF power to desired level.

Turning the device OFF

1. Turn the RF power off.

2. Decrease VGS down to VP.

3. Decrease VDS down to 0 V.

4. Turn off VGS.

Bias Sequencing

C14

3.0 pF

1000 pF

0.01

0.1

1.0

VGS

VDS

C16

0.5 pF

C15

2.4 pF

Out

NPT2021

1.0

0.1

0.01

1000pF

C13

0.5 pF

10 pF

C11

18 pF

C12

18 pF

24.9



22 nH

C10

15 pF



C17

2.4 pF

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