A Wide-Bandwidth 2.4GHz ISM-Band Fractional-N PLL with Adaptive Phase-Noise Cancellation

A Wide-Bandwidth 2.4GHz ISM-Band Fractional-N PLL with Adaptive Phase-Noise Cancellation

A 2.4GHz ISM-band PLL with a 730kHz bandwidth, a 12MHz reference, an on-chip loop filter, and worst-case phase noise of -101 dBc/Hz and -124dBc/Hz at 100kHz and 3MHz offsets, respectively, is enabled by an adaptive phase-noise cancellation technique with 35mus settling time. The 0.18mum CMOS IC meas...

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Bibliographische Detailangaben
Hauptverfasser: Swaminathan, Ashok, Wang, Kevin J., Galton, Ian
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Bandwidth
Calibration
Charge pumps
Circuits
Filters
Frequency
Noise cancellation
Phase locked loops
Phase noise
Voltage-controlled oscillators
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Beschreibung
Zusammenfassung:A 2.4GHz ISM-band PLL with a 730kHz bandwidth, a 12MHz reference, an on-chip loop filter, and worst-case phase noise of -101 dBc/Hz and -124dBc/Hz at 100kHz and 3MHz offsets, respectively, is enabled by an adaptive phase-noise cancellation technique with 35mus settling time. The 0.18mum CMOS IC measures 2.2times2.2mm 2 , and its core circuitry draws 20.9mA from a 1.8V supply.
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2007.373414