標題: An eCrystal Oscillator with Self-Calibration Capability
作者: Yu, Chien-Ying
Yu, Jui-Yuan
Lee, Chen-Yi
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 2009
摘要: This paper reports an embedded crystal (eCrystal) oscillator which is capable of compensating process, voltage, and temperature (PVT) variation. The delay behaviors of two different delay cells are exploited for the delay estimation. Then the estimated delay is parameterized by a second order approximated function. According to the estimated delay, the eCrystal oscillator is able to calibrate the frequency error without any external reference. A 40MHz oscillator is implemented in a 90-nm CMOS technology with area of 0.4mm(2) by an all-digital approach. The fabricated chip is measured under supply voltage from 0.9V to 11.1V and temperature range from 0 degrees C to 75 degrees C with active power consumption of 237 mu W.
URI: http://hdl.handle.net/11536/14078
ISBN: 978-1-4244-3827-3
期刊: ISCAS: 2009 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-5
起始頁: 237
結束頁: 240
Appears in Collections:Conferences Paper