The SM2101 FSK/BPSK-based power line transceiver was designed with an emphasis on advanced metering infrastructure and automated meter-reading applications and can operate reliably in notoriously noisy grid environments. The low-cost part does not include a CPU or flash memory.
The IC offers a choice of two communication frequencies from eight factory presets. It can be set to BPSK modulation for noise immunity and compatibility to ANSI/EIA 709.1 and ANSI/EIA 709.2 devices, or FSK modulation for high immunity to phase distortion. The chip approximates the amount of noise on a frequency by direct measurement and the signal strength of received packets, supports CENELEC A-, B-, and C-band operation, and features receiver sensitivity of –80 dBV. ($1.95 ea/10,000 — samples available now.)
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