Texas Instruments THVD8000 User Manual

This user's guide describes the evaluation module (EVM) for a RS-485 over power transceiver
THVD8000. This EVM helps designers evaluate the device performance for fast development and analysis
of data transmission systems with power delivery on the same two wires.
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1 Overview
2 EVM Schematic and layout
3 THVD8000EVM Setup and Operation
1 THVD8000 Operation
2 THVD8000EVM Schematic
3 THVD8000EVM Layout
1 Jumpers and Test points
2 F_SET Pin Resistor Selection
3 J27 pin connection
Trademarks
1 Overview
In the 1980s, the Electronics Industries Association (EIA) approved a balanced transmission standard
called RS-485, which has become the industry's interface workhorse with widespread usage in various
end equipment. Leveraging RS-485 physical layer signaling, THVD8000 enables power line
communication on the same two wires. Built-in OOK modulation enables RS-485 data to be directly
coupled onto existing power cables via series capacitors without any updates to the MCU or the controller.
The THVD8000 receiver extracts the data from the power cables after AC-coupling by using a precise
bandpass filter and a demodulator.
SLLU140 – May 2020
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List of Figures
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List of Tables
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Copyright © 2020, Texas Instruments Incorporated
THVD8000 EVM User's Guide
Contents
User's Guide
SLLU140 – May 2020
THVD8000 EVM User's Guide
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