A 65μA 8MHz On-Chip Oscillator with LDO Regulator for Low-Power Handheld SoC Applications

摘要：

This paper discusses an 8MHz square wave oscillator used for a clock signal of the digital core of a mixed signal integrated circuit (IC). The frequency is determined by a bias current that charges a capacitor until it triggers a comparator with a voltage reference as the second input. A low drop out (LDO) voltage regulator is used to supply the oscillator so that variations in the battery voltage do not affect the oscillator.. The circuits have been designed and taped out and the measured results are closed to the SPICE simulated values. The oscillator has very low power consumption of 165μW which is very attractive for a general handheld device that is operated off of a battery.

作者: J.Day P.Vulpoiu D.K.Johnson J.Julich D.Y.C.Lie

作者单位: Department of Electrical Engineering,Texas Tech University,Lubbock,TX Texas Instruments,Dallas,TX

会议类型: 国际会议

会议名称: 9th International Conference on Solid-State and Integrated-Circuit Technology(第9届固态和集成电路国际会议)

会议地点: 北京

会议语种:英文

页码: 2027-2030

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）