A Ring-Type ILFD with Locking Range of 91% for Divide-by-4 and 40% for Divide-by-8 with Quadrature Outputs
Publish place: 21th Iranian Conference on Electric Engineering
Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICEE21_537
تاریخ نمایه سازی: 27 مرداد 1392
Abstract:
In this paper, a low-power, wide locking range and quadrature output divide-by-4 and divide-by-8 ring-type injection-locked frequency divider (ILFD) is proposed. Twotechniques are implemented in a two-stage ring ILFD to provide wide locking range and low power consumption at the same time. To widen the bandwidth, a common-gate tail configuration for injecting the signal is employed. Furthermore, the common-source node sharing topology is used to increasethe operating frequency of the ILFD. This ILFD is designed in a 90 nm CMOS technology. Simulation results show that theproposed ILFD can provide the locking range of 91% for divide-by-4 and 40% for divide-by-8 at the incident power of -5 dBm and -10 dBm, respectively. It consumes about 1.57 mW at a supply voltage of 1.2 V
Keywords:
divide-by-4 , divide-by-8 , Injection locked frequency divider (ILFD) , locking range , ring oscillator
Authors
Najmeh Hajamini
Amirkabir University of Technology, Tehran, Iran