Importance

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Abstract

In one embodiment, a RFID reader circuit includes a master clock for providing a timing signal on a timing signal output thereof, a switching regulator synchronized with the timing signal for providing power to the RFID reader circuit, a Radio Frequency (RF) source in a transmitting path, the RF source being coupled to the timing signal output, and an analog-to-digital converter (ADC) in a receiving path, the ADC being coupled to the timing signal output. This circuit may also be included in an RFID system having a reader and a plurality of RFID tags, in one approach. According to another general embodiment, a method for mitigating noise in a RFID reader circuit includes providing a common timing signal or derivatives thereof from a master clock to each component in a RFID reader circuit and to a power supply. Other systems and methods are also shown, according to various embodiments.

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First Claim