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S-FSK Power Line Networking System On Chip
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The ST7570 is a powerful power line networking system-on-chip. It combines a high-performance PHY processor core and a protocol controller core with a fully integrated analog front end (AFE) and line driver.

The ST7570 features allow the most cost-effective, single-chip power line communication solution based on IEC61334-5-1 S-FSK standard.

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Errata Sheet
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Key Features

  • Fully integrated narrow-band power line networking system-on-chip
  • High performing PHY processor with embedded turn-key firmware for spread frequency shift keying (S-FSK) modulation:
  • Programmable bit rate up to 2.4 Kbps (@ 50 Hz)
  • 1 Hz step programmable carriers up to 148.5 kHz
  • Signal to noise ratio estimation
  • Received signal strength indication
  • Protocol engine embedding:
  • IEC61334-5-1 PHY and MAC layers
  • Alarm management
  • Repeater Call procedure
  • Intelligent search initiator process
  • On chip peripherals:
  • Host controller UART interface
  • Fully integrated analog front end:
  • ADC and DAC
  • PGA with automatic gain control for high receiving sensitivity
  • High linearity modulated signal generation
  • Fully integrated single-ended power amplifier for line driving
  • Up to 1 A rms, 14 V p-p output
  • Configurable Active filtering topology
  • Very high linearity
  • Embedded temperature sensor
  • Current control feature
  • 8 to 18 V power amplifier supply
  • 3.3 V or 5 V digital I/O supply
  • Integrated 5 V and 1.8 V linear regulators for AFE and digital core supply
  • Mains zero crossing synchronization
  • Suitable for EN50065 and FCC part 15 compliant applications
  • VFQFPN48 package with exposed pad
  • -40 °C to +85 °C temperature range

Circuit Diagram

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS6837: S-FSK power line networking system-on-chip
2.0 436 KB

Application Notes

Description Version Size
AN3213: ST7570 S-FSK power line networking system-on-chip design guide for AMR
1.2 2,246 KB

User Manual

Description Version Size
UM0934: ST7570 S-FSK power line networking System-on-Chip
2.0 1,595 KB
UM1008: Demonstration kit for the ST7570 power line modem with graphical user interface
2.0 2,526 KB
UM1038: Hardware interconnection of the STM32™, SPEAr™3xx, and ST75xx
1.2 797 KB

Related Tools and Software

Related Tools and Software

Part Number Description
EVALKITST7570-1 ST7570 S-FSK power line networking system-on-chip evaluation KIT for AMR

Publications and Collaterals


Description Version Size
STM32-PLC Smart meter solution
1,194 KB
STarGRID power-line flyer
766 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOutput CurrentAutomotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
ST7570ActiveVFQFPN 48 7x7x1.0Tray_-5.3No availability reported, please contact our Sales officeEcopack2PDF
ST7570TRActiveVFQFPN 48 7x7x1.0Tape And Reel_-5.3No availability reported, please contact our Sales officeEcopack2PDF

(*) 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 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.