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A 500 MHz super-regenerative receiver (SRR) with a digitally self-quenching loop (DSQL) is designed for low-power/high-data-rate applications. The DSQL replaces the envelope detector used in a conventional SRR and minimizes the overall power consumption by generating a self-quench signal digitally for a super-regenerative oscillator. The receiver is fabricated using a 0.13 μm CMOS process. The chip size is 0.7 mm2 and the minimum energy usage is 0.09 nJ/b with a supply voltage of 1 V at a data rate of 10 Mbps. The measured sensitivity is - 76 dBm.
Date of Publication: Sept. 2012