TY - GEN
T1 - Electromagnetic susceptibility analysis of phase noise in VCOs
AU - Hwang, Jisoo
AU - Kim, Soyoung
PY - 2014
Y1 - 2014
N2 - Voltage controlled oscillators (VCOs) are one of the most sensitive circuit block to electromagnetic noise. The phase noise of VCOs depends on the time when the noise is injected, so it has time-variant nature to electromagnetic interference (EMI). In this paper, we apply the phase noise theory in analyzing the electromagnetic susceptibility (EMS) of phase noise in VCOs in presence of noise in power supply lines. For two most common types of VCOs, ring and LC, impulse sensitivity function (ISF) when EMI is injected on the supply voltage node, is derived from netlist including the actual layout parasitics. The ISF comparisons show that LC VCO has better EM noise immunity than ring VCO. The EMS prediction from ISF is validated from eye diagram analysis using SPICE simulation.
AB - Voltage controlled oscillators (VCOs) are one of the most sensitive circuit block to electromagnetic noise. The phase noise of VCOs depends on the time when the noise is injected, so it has time-variant nature to electromagnetic interference (EMI). In this paper, we apply the phase noise theory in analyzing the electromagnetic susceptibility (EMS) of phase noise in VCOs in presence of noise in power supply lines. For two most common types of VCOs, ring and LC, impulse sensitivity function (ISF) when EMI is injected on the supply voltage node, is derived from netlist including the actual layout parasitics. The ISF comparisons show that LC VCO has better EM noise immunity than ring VCO. The EMS prediction from ISF is validated from eye diagram analysis using SPICE simulation.
KW - electromagnetic susceptibility
KW - impulse sensitivity function
KW - Jitter
KW - phase noise
KW - voltage controlled oscillator
UR - https://www.scopus.com/pages/publications/84907392692
U2 - 10.1109/ISCE.2014.6884447
DO - 10.1109/ISCE.2014.6884447
M3 - Conference contribution
AN - SCOPUS:84907392692
SN - 9781479945924
T3 - Proceedings of the International Symposium on Consumer Electronics, ISCE
BT - ISCE 2014 - 18th IEEE International Symposium on Consumer Electronics
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th IEEE International Symposium on Consumer Electronics, ISCE 2014
Y2 - 22 June 2014 through 25 June 2014
ER -