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ST7540

B-FSK - Stripped down Power Line Transceiver
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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.

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Errata Sheet
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Datasheet

Key Features

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

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS4668: FSK power line transceiver
2.3 384 KB

Application Notes

Description Version Size
pdf
AN2451: ST7540 FSK powerline transceiver design guide for AMR
3.4 2,440 KB
pdf
AN2744: ST7538Q power line FSK transceiver dual channel reference design for AMR
1.3 2,373 KB

User Manual

Description Version Size
pdf
UM0239: ST7540 power line modem demokit graphical user interface (GUI)
1.3 2,230 KB
pdf
UM1573: ST7540 power line modem firmware stack
1.0 769 KB

Design Notes & Tips

Description Version Size
pdf
DN0010: Adapting ST power line modem evaluation boards to communicate over a DC bus
1.0 406 KB

Related Tools and Software

Related Tools and Software

Part Number Description
EVALCOMMBOARD Communication/ control board based on ST72F651AR6 microcontroller for power line communication and industrial products
EVALST7540-2 ST7540 FSK powerline transceiver evaluation board
STEVAL-IHP005V1 General purpose power line modem module based on the ST7540 PLM and STM32 microcontroller
STSW-WIFI002 AT Full Stack Version 3.1. Firmware Upgrade for the modules SPWF01Sx.21

Publications and Collaterals

Flyer

Description Version Size
pdf
ST7540 power line transceiver
1.0.0 234 KB

Magazine

Description Version Size
pdf
SMArt Street lighting solutions: Remote Control Protocol Over Power Line communication
537 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOutput CurrentAutomotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
ST7540ActiveHTSSOP28Tube_-4.4Distributor reported inventory date: 2014-12-19
Distributor NameRegionStockMin. order
ANGLIA LiveOrder NowEUROPE51
ARROWOrder NowEUROPE4240
RS COMPONENTSOrder NowEUROPE3241
DIGIKEYOrder NowWORLDWIDE4501
MOUSEROrder NowWORLDWIDE2031
Ecopack2PDF
XML
ST7540TRActiveHTSSOP28Tape And Reel_Free Samples4.4Distributor reported inventory date: 2014-12-19
Distributor NameRegionStockMin. order
DIGIKEYOrder NowWORLDWIDE11931
Ecopack2PDF
XML

(*) 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
(**) 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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