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In this work, a low-power super-regenerative receiver (SR-RX) operating in the MICS band is designed. A fast digital frequency calibration loop is proposed to adjust the oscillator center frequency to the desired frequency band and the maximum tuning time is just 2.7 μs. Some other calibration loops are also added to enhance the SR-RX performance. The SR-RX is capable of achieving a maximum data rate...
This paper presents a 400MHz super-regenerative receiver (SR-RX) with a proposed ΔΣpulse-width digitizer (ΔΣ-PWD) and a SAR-based fast frequency calibration (SAR-FFC). The ΔΣ-PWD can be considered as a PW-domain counterpart of a conventional ΔΣ modulator. It achieves high-resolution PW-to-digital conversion. The SAR-FFC enables rapid setting of the oscillator frequency to the MICS band. Fabricated...
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