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HMC559

GaAs PHEMT MMIC

POWER AMPLIFIER, DC - 20.0 GHz

v01.0406

Pad Number

Function

Description

Interface Schematic

1IN

This pad is DC coupled and matched

to 50 Ohms from DC - 20GHz.

Blocking capacitor is required.

2Vgg2

Gate control 2 for amplifier. Attach bypass

capacitor per application circuit herein. For nominal

operation +4V should be applied to Vgg2.

3ACG2

Low frequency termination. Attach bypass

capacitor per application circuit herein.

4

OUT & Vdd

RF output for amplifier. Connect DC bias (Vdd) network to

provide drain current (Idd). See application circuit herein.

5Vgg1

Gate control 1 for amplifier. Attach bypass

capacitor per application circuit herein. Please

follow “MMIC Amplifier Biasing Procedure”

application note.

6ACG1

Low frequency termination. Attach bypass

capacitor per application circuit herein.

Die Bottom

GND

Die bottom must be connected to RF/DC ground.

Pad Descriptions