Qorvo ACT43750EVK3 User Manual

USER'S GUIDE
ACT43750EVK3 User's Guide
Description
This document describes the characteristics and operation of the Qorvo ACT43750EVK3 evaluation kit (EVK). It provides
setup and operation instructions, schematic, layout, BOM, GUI, and test data. This EVK ships as a standalone board that
can be evaluated independently or with a GaN RF Power Amplifier.
The ACT43750 is an integrated power solution that controls GaN RF PA drain and gate:
•
Generates negative gate voltage for the PA gate
•
Properly sequenced turn on and turn off
•
Automatic gate voltage / drain current calibration
•
Drain voltage switching
It is an ideal solution for radio frequency (RF) power amplifiers (PAs) that demand fast transient, high current pulsed loads.
Features
Qorvo recommends that the user evaluate the EVK functionality with an RF PA and with the EVK connected to a PC running
the graphical user interface (GUI) software. The GUI allows the user to enable/disable the outputs and to customize the
exact voltage and current requirements for the specific RF PA being tested. The user can use the ACT43750 GUI to set the
RF PA Idq bias current target, and the EVK autonomously finds and stores the optimal gate voltage for the Idq bias current.
October 2024 Rev 2.0 | Subject to change without notice
Figure 1. ACT43750EVK3 Board
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