Texas Instruments GC5325, User Manual

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User ' s Guide
SLWU063F – April 2009 – Revised April 2011
GC5325 System Evaluation Kit
This document outlines the basic steps and functions that are required to ensure the proper operation of
the GC5325 System Evaluation Kit (SEK) system. The GC5325 is a fully integrated crest-factor reduction
(CFR), digital predistortion (DPD) device capable of linearizing a typical base-station power amplifier (PA).
This guide can help users to quickly evaluate the performance of various PAs with varying system
parameters, such as CFR levels and PA input/output power levels before and after the DPD. The GC5325
EVM has two GC5325 devices configured to provide two separate transmit paths and uses one ADC for
feedback that is shared by both GC5325 parts. The block diagram for the GC5325SEK is shown
Figure 1 .
Contents
1 Overview
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3
2 Hardware Setup
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3
2.1 Power-Up Sequence
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6
3 Software Installation
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3.1 MATLAB ™ Control Libraries and Tools
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3.2 TSW3100 Software and Drivers
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7
3.3 DSP-Weuffen USB-to-UHPI Software and Driver
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4 Using the Software
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4.1 Starting the GUI Software
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8
4.2 Operating the GC5325SEK
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5 Other Functions
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5.1 About
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5.2 TSW3100
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5.3 Options
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5.4 Device
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5.5 Port
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5.6 GC5325 Registers
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5.7 Signal Setup.
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5.8 RF Card
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5.9 DPD Operation
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5.10 Capture Buffers
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5.11 Quit and Command/Message window
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6 Summary
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Appendix A LEDs, Switches, Connectors, and Jumpers
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List of Figures
1 GC5325EVM Block Diagram
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2 Location of Local Oscillator Inputs
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3 Mixer Jumper Definition
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4 DOS Window at Start-Up
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5 GUI at Start-Up
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6 GUI Configured for UHPI Loading of DSP
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7 Signal Levels in the GC5325 – Definition of HR and PAR
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8 MATLAB Vector Saved as .mat File
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9 Import Wizard Screen
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10 Spectrum
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1 SLWU063F – April 2009 – Revised April 2011 GC5325 System Evaluation Kit
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