TY - GEN
T1 - Generic Model for Multi-Phase Ring Oscillators
AU - Pereira, Paula C.
AU - Pinto, António C.
AU - Oliveira, Luis B.
AU - Fernandes, Jorge R.
N1 - info:eu-repo/grantAgreement/FCT/5876/147282/PT#
This work was supported by national funds through FCT, Fundacao para a Ciencia e a Tecnologia, under project UID/CEC/50021/2013 and project UNSEEN 02/SAICT/2017.
PY - 2018/4/26
Y1 - 2018/4/26
N2 - We present a generic model for Multiple Phase Ring Oscillators (MPRO) with 2n phases, and derive equations for frequency, phase and phase error under the simplifying approach of injecting the error in a single element. Extensive Monte Carlo simulations, at transistor level, for the four and eight phase circuits, are in accordance with these assumptions. These results are validated by two prototype integrated circuits, implemented in a 130 nm CMOS technology: The first prototype, which is a standalone four phases Ring Oscillator (RO), validates the theoretical analysis concerning the non-linear model main conclusions and, the second prototype, which is an eight phase RO, incorporated as a block of an ISM receiver, validates the generic model for CRO concept.
AB - We present a generic model for Multiple Phase Ring Oscillators (MPRO) with 2n phases, and derive equations for frequency, phase and phase error under the simplifying approach of injecting the error in a single element. Extensive Monte Carlo simulations, at transistor level, for the four and eight phase circuits, are in accordance with these assumptions. These results are validated by two prototype integrated circuits, implemented in a 130 nm CMOS technology: The first prototype, which is a standalone four phases Ring Oscillator (RO), validates the theoretical analysis concerning the non-linear model main conclusions and, the second prototype, which is an eight phase RO, incorporated as a block of an ISM receiver, validates the generic model for CRO concept.
KW - Coupled Oscillators
KW - Coupled Ring Oscillators
KW - Multiple Phase Clocks
KW - Multiple phase oscillators
KW - Multiple phase ring oscillators
KW - Oscillators
KW - Quadrature oscillators
KW - Ring Oscillators
UR - http://www.scopus.com/inward/record.url?scp=85057120102&partnerID=8YFLogxK
U2 - 10.1109/ISCAS.2018.8351777
DO - 10.1109/ISCAS.2018.8351777
M3 - Conference contribution
AN - SCOPUS:85057120102
T3 - IEEE International Symposium on Circuits and Systems
BT - 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers (IEEE)
T2 - 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018
Y2 - 27 May 2018 through 30 May 2018
ER -