Description

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.

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

Applications

■ Smart metering applications

■ Street lighting control

■ Command and control networking