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PLBUS narrowband carrier power line communication chip LME2980

Published Time: 2022-10-14 10:35:47
LME2980 is a highly integrated, high-performance power line communication SoC chip with built-in user-programmable MCU.

Program introduction:
Its power line communication part adopts advanced zero-crossing transmission OFDM digital communication technology (Z-OFDM) suitable for domestic harsh grid environment. The physical layer conforms to the national narrowband power line communication standard physical layer specification GB/T31983.31, and supports IoT applications The complete power line communication protocol PLBUS. The chip implements a high-performance power line communication physical layer, a wide dynamic range automatic gain control analog transceiver front-end, analog and digital filters, and a protocol processor. The built-in MCU of the chip integrates a complete PLBUS PLC protocol stack and provides rich peripheral interfaces. "Communication through wires", no wiring, no blind spots, no antennas, no metal shielding, widely used in smart home appliances/home smart control, smart street lights, comprehensive energy efficiency management and various industrial IoT application etc. Main features ● User can define any start and stop frequency within the range of 500kHz. Fully supports China narrowband power line carrier communication frequency band, European CENELEC A/B/C frequency band, Japan ARIB and North American FCC frequency band ● Unique Z-OFDM based on the orthogonal frequency division multiplexing modulation technology of power frequency time slot zero-crossing transmission ● Typical rate up to 5-20kbps ● The chip integrates a complete PLBUS PLC communication protocol stack ● The chip integrates a wide dynamic range automatic gain control analog front end, and integrates a high-speed MCU with a variety of peripheral interfaces ● 1.2V and 3.3V power supply ● 48-PIN LQFP 7mmx7mm package.

Performance parameters:
Industry Classification : Smart Home Appliances Development platform: Leaguer Lihe Microelectronics Delivery form : Software Performance parameters: Data interface: two sets of full-duplex UART serial data interface, SPI Master interface: up to 12MHz clock, independent SPI Slave interface: up to 6MHz clock, encoder/decoder: CRC-32, encryption/decryption co-processing Device: AES-128/192/256, OTP Memory: 1KB, Counter: 32-bit power frequency signal zero-crossing counter Application scenarios: smart home appliances/smart home control, smart street lights, data collection/comprehensive energy efficiency management, photovoltaic power generation monitoring and management, other IoT scenarios for data transmission through power lines.