Texas Instruments LMH9235RRL-EVM, Руководство пользователя

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1 SBOU242 – May 2020
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Copyright © 2020, Texas Instruments Incorporated
LMH9235 Evaluation Module
User's Guide
SBOU242 – May 2020
LMH9235 Evaluation Module
This document outlines the basic steps and functions that are required to ensure the proper operation and
quick setup of the LMH9235RRL-EVM. This document also includes a schematic diagram, a bill of
materials (BOM), printed-circuit board (PCB) layouts, and test block diagrams. Throughout this document,
the abbreviations
EVM, LMH9235 EVM and the term evaluation module are synonymous with the
LMH9235RRL-EVM, unless otherwise noted.
Contents
1 Description
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2
1.1 Features
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1.2 General Usage Information
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2 EVM Overview
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2.1 Schematic
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2.2 PCB Layers
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2.3 LMH9235 EVM Bill of Material
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2.4 Stack up and Material
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3 Test Setup Diagrams
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3.1 S-Parameter Test Setup
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3.2 Noise Figure Test Setup
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3.3 Two-Tone OIP3 Test Setup
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List of Figures
1 Single Tone Setup for Gain and Output P1dB
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2 LMH9235 EVM Schematic
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3 Top Layer
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4 Layer 2
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5 Layer 3
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6 Bottom Layer
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7 LMH9235 EVM Stack-up (Units in Mils)
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8 S-Parameter Test Setup
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9 Input PCB Trace Loss vs Frequency
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10 Output PCB Trace Loss vs Frequency
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11 Noise Figure Test Setup
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12 OIP3 Test Setup
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List of Tables
1 LMH9235 EVM BOM
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