Power Line Communication Device that is Resilient to Cross-Band Interference

摘要

A Power Line Communication (PLC) device that is resilient to cross-band interference. The PLC device is configured to communicate on AC power wiring in the frequency range of 9 kilohertz to 500 kilohertz and does not use automatic gain control prior to analog-to-digital conversion. The PLC device includes an over-sampled analog-to-digital converter with a sample clock of at least 10 megahertz and includes a loop filter that maintains a noise power spectral density that does not exceed three decibels above a minimum noise floor, of the noise power spectral density, at 80 kilohertz or above, and a digital filter and decimator configured to remove quantization noise, where a decimation factor of the decimator is such that it provides an output decimation rate between 350 kilohertz and 1.6 megahertz.

主权项

1. An apparatus, comprising:
a power line communication (PLC) device that is configured to communicate on alternating current (AC) power wiring in the frequency range of 9 kilohertz to 500 kilohertz and does not use automatic gain control (AGC) functionality prior to analog to digital conversion, the PLC device including:
an over-sampled analog-to-digital converter (ADC) with a sample clock of at least 10 megahertz and includes:
a loop filter that maintains a noise power spectral density that does not exceed 3 decibels above a minimum noise floor, of the noise power spectral density, at 80 kilohertz or above, anda digital filter and decimator configured to remove quantization noise, wherein a decimation factor of the decimator is such that it provides an output decimation rate between 350 kilohertz and 1.6 megahertz.