The STCOMET is a device that integrates a power line communication (PLC) modem, a high-performance application core and metrology functions.
●The PLC modem architecture has been designed to target the EN50065, FCC, ARIB compliant PLC applications. Together with the application core, it enables the STCOMET to support the ITU-T G.9001, ITU-T G.9903 (G3-PLC®), ITU-T G.9904 (PRIME), IEEE 1901.2, IEC 61334-5-1 (G1), CLC/TS 50568 (METERS AND MORE®) and other narrow band PLC protocol specifications.
●The metrology sub-system is suitable for EN 50470-1, EN 50470-3, IEC 62053-21, IEC 62053-22 and IEC 62053-23 compliant class1, class0.5 and class0.2 AC metering applications.
●Key Features
● Integrated differential PLC analog front-end
● PGA with automatic gain control and ADC
● Current DAC with transmission predriver
● Digital transmission level control
● Zero crossing comparator
● Up to 500 kHz PLC signal bandwidth
● Integrated dual line driver
● 14 V p-p single ended, 28 V p-p differential output range
● Very high linearity for EMC compliance
● Externally configurable amplifier topology
● 1 A rms max. current
● Embedded overtemperature protection
● Suitable for all PLC signals up to 500 kHz
● Fully reprogrammable real-time engine (RTE) modem for PLC standards up to 500 kHz
● High accuracy metering front-end
● 3 independent 24-bit ΣΔ ADC channels
● 3.6 kHz bandwidth
● Dedicated DSP for turnkey calculation of metrology parameters
● Direct access to 24-bit ΣΔ data
● Integrated application core: ARM® 32-bit Cortex™-M4F CPU
● 96 MHz maximum frequency
● 8-channel direct memory access controller
● 8-region memory protection unit
● Serial wire and JTAG interfaces
● Cortex-M4 Embedded Trace Macrocell™
● Up to 86 multiplexed GPIOs
● 11 timers
● 1 flexible CRC calculation unit
● 5 USARTs (ISO 7816 compliant), 5 SPI, 3 I2 C
● 12-bit general purpose ADC with 6 channels
● Cryptographic engine
● AES 128/192/256 engine
● True random number generator
● Memories
● 640 kB or 1 MB of embedded Flash
● 128 kB of embedded SRAM
● 8 kB of embedded shared RAM
● Flexible static memory controller
● Clock management
● 24 MHz external crystal for system clock with internal QFS synthesizer
● 32.768 kHz external crystal for RTC
● Power management
● 3.3 V and 8 - 18 V external supply voltages
● 1.2 V and 5 V integrated linear regulators
● Normal and low power modes
● Real-time clock (RTC)
● VBAT supply with battery health monitoring for RTC and backup registers
● -40 °C to +85 °C operating temperature range
