TY - GEN
T1 - A 10-to-12 GHz 5 mW Charge-Sampling PLL Achieving 50 fsec RMS Jitter,-258.9 dB FOM and-65 dBc Reference Spur
AU - Gong, Jiang
AU - Sebastiano, Fabio
AU - Charbon, Edoardo
AU - Babaie, Masoud
N1 - Accepted Author Manuscript
PY - 2020
Y1 - 2020
N2 - This paper presents a charge-sampling PLL (CSPLL), that demonstrates the best reported jitter-power FOM of-258.9 dB thanks to its high phase-detection gain and to the removal of the power-hungry buffer driving the phase detector. It also achieves-65 dBc of reference spur by both minimizing the modulated capacitance seen by the VCO tank and reducing the duty cycle of the sampling clock. Without requiring any RF dividers, a 50 μW frequency tracking loop is also introduced to robustly lock the CSPLL to a 100 MHz reference. Fabricated in 40-nm CMOS, the 0.13 mm2 CSPLL achieves an RMS jitter of 50 fsec at 11.4 GHz while consuming 5 mW.
AB - This paper presents a charge-sampling PLL (CSPLL), that demonstrates the best reported jitter-power FOM of-258.9 dB thanks to its high phase-detection gain and to the removal of the power-hungry buffer driving the phase detector. It also achieves-65 dBc of reference spur by both minimizing the modulated capacitance seen by the VCO tank and reducing the duty cycle of the sampling clock. Without requiring any RF dividers, a 50 μW frequency tracking loop is also introduced to robustly lock the CSPLL to a 100 MHz reference. Fabricated in 40-nm CMOS, the 0.13 mm2 CSPLL achieves an RMS jitter of 50 fsec at 11.4 GHz while consuming 5 mW.
KW - charge-sampling phase detector
KW - Charge-sampling PLL
KW - divider-less frequency tracking loop
KW - low-jitter
UR - http://www.scopus.com/inward/record.url?scp=85093952767&partnerID=8YFLogxK
U2 - 10.1109/RFIC49505.2020.9218380
DO - 10.1109/RFIC49505.2020.9218380
M3 - Conference contribution
AN - SCOPUS:85093952767
T3 - Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
SP - 15
EP - 18
BT - RFIC 2020 - 2020 IEEE Radio Frequency Integrated Circuits Symposium
PB - IEEE
CY - Piscataway, NJ, USA
T2 - 2020 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2020
Y2 - 4 August 2020 through 6 August 2020
ER -