B-FSK - Stripped down Power Line Transceiver

The ST7540 is a Half Duplex synchronous/asynchronous FSK Modem designed for power line communication network applications. It operates from a single supply voltage and integrates a line driver and two linear regulators for 5V and 3.3V. The device operation is controlled by means of an internal register, programmable through the synchronous serial interface. Additional functions as watchdog, clock output, output voltage and current control, preamble detection, time-out and band in use are included. Realized in Multipower BCD5 technology that allows to integrate DMOS, Bipolar and CMOS structures in the same chip.

Key Features

  • Programmable baud rate up to 4800BPS
  • 8 Programmable transmission frequencies
  • Suitable for applications in accordance with EN 50065 Cenelec specification
  • Receiving sensitivity up to 250µVRMS
  • Band in use detection
  • Carrier or preamble detection
  • Watchdog timer
  • Programmable control register
  • 8 or 16 Bit header recognition
  • Integrated 3.3V voltage regulator (up to 50mA) with short circuit protection
  • Integrates 5V voltage regulator (up to 50mA) with short circuit protection
  • Half-duplex frequency shift keying (FSK) transceiver
  • Programmable mains access:SynchronousAsynchronous
  • Integrated power line driver with programmable voltage and current control
  • Very low power consumption (Iq = 5mA)
  • 3.3V or 5V digital supply
  • UART/SPI host interface
  • Single supply voltage (from 7.5V up to 13.5V)
  • ST7537 and ST7538 compatible

Circuit Diagram

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Design

Technical Documentation

Product Specifications
Description Version Size
DS4668 DS4668: FSK power line transceiver 2.3 384 KB
Application Notes
Description Version Size
AN3970 AN3970: PLM smartplug V2 getting started 2.0 631 KB
AN2744 AN2744: ST7538Q power line FSK transceiver dual channel reference design for AMR 1.3 2 MB
AN2451 AN2451: ST7540 FSK powerline transceiver design guide for AMR 3.4 2 MB
User Manuals
Description Version Size
UM0239 UM0239: ST7540 power line modem demokit graphical user interface (GUI) 1.3 2 MB
UM1573 UM1573: ST7540 power line modem firmware stack 1.1 768 KB
Design Notes & Tips
Description Version Size
DN0010 DN0010: Adapting ST power line modem evaluation boards to communicate over a DC bus 1.1 405 KB

Publications and Collaterals

Flyers
Description Version Size
ST7540 power line transceiver 2.1 234 KB
Magazine Articles
Description Version Size
SMArt Street lighting solutions: Remote Control Protocol Over Power Line communication 536 KB

Tools and Software

Evaluation Tools
Solution Evaluation Tools

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity Output Current (mA) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ST7540 HTSSOP28 Tube Active 4.4 1000 - NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
ST7540TR HTSSOP28 Tape And Reel Active 4.4 1000 - NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST7540 ActiveHTSSOP28IndustrialEcopack2 0 0
ST7540TR ActiveHTSSOP28IndustrialEcopack2 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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