Zobrazeno 1 - 10
of 461
pro vyhledávání: '"Crystal oscillator frequencies"'
Autor:
Alireza Khalili, Michael P. Flynn, Amirpouya Kavousian, Yashar Rajavi, Beomsup Kim, Mohammad Mahdi Ghahramani
Publikováno v:
IEEE Journal of Solid-State Circuits. 52:2735-2745
A 168-fs rms jitter, 48-MHz differential crystal oscillator based on a new active inductor biasing circuit achieves differential operation with low noise, power, and area overhead. This architecture has two significant advantages compared to the sing
Autor:
Alireza Imani, Hossein Hashemi
Publikováno v:
IEEE Journal of Solid-State Circuits. 52:2083-2093
Distributed injection-locked frequency division is introduced as a method to increase the locking range beyond that of conventional injection-locked frequency dividers. It is analytically shown that continuous frequency division can be achieved over
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 64:1225-1234
We present a study of dual-band injection locking frequency dividers (ILFDs), based on a nonlinear analysis. We develop a quasi-normal model of these dividers suitable for applying the method of averaging, which allowed us to derive in a simple and e
Autor:
Byungsub Kim, Young Hun Seo, Shinwoong Kim, Hwasuk Cho, Jae-Yoon Sim, Seunghwan Hong, Seungnam Choi, Hong-June Park, Jaehyeong Hong
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 64:106-110
This brief presents a fast-lock 2.4-GHz fractional-N phase-locked loop (PLL) for ultralow-power applications. To minimize the power consumed by all the other circuits except for the main oscillator, we propose a master-slave PLL structure in which a
Publikováno v:
Journal of Vibration and Control
This paper presents an innovative method to achieve the simultaneous phase control of multiple resonance frequencies of a linear multi-degree-of-freedom system using only one sensor/actuator pair. Each frequency is manipulated independently by means
Autor:
Behzad Razavi
Publikováno v:
IEEE Solid-State Circuits Magazine. 9:7-9
Most electronic systems rely on a precise reference frequency or time base for their operation. Examples include wireless and wireline communication transceivers, computing devices, instrumentation, and the electronic watch. The crystal oscillator ha
Autor:
Liming Xiu
Publikováno v:
IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 23:1335-1344
Direct period synthesis is a technique of using a base time unit and the time-average-frequency concept to synthesize clock frequency. Its distinguished capabilities include generating frequencies in very fine step and switching frequency in very fas
Publikováno v:
Analog Integrated Circuits and Signal Processing. 83:195-202
This paper presents a high-performance differential coupled frequency doubling voltage-controlled crystal oscillator (VCXO). Frequency doubling and low phase noise are realized through a novel gm-boosted differential Colpitts oscillator. Distributed
Autor:
YoungGun Pu, Keum Cheol Hwang, Kang-Yoon Lee, Youngoo Yang, Munkyo Seo, Dong-Soo Lee, Jae-hyung Jang, Hyung-Gu Park
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 62:327-331
This brief presents a wide-locking-range injection-locked frequency divider (ILFD) that uses an automatic frequency calibration loop. The proposed ILFD uses the ring oscillator to provide the high division ratio with small chip area. A dual-injection