Title :
A novel PLL-based phase control technique in the digitalized closed-loop gyroscope interface circuit
Author :
Tingting Tao ; Wengao Lu ; Ran Fang ; Guangchong Shen ; Shaojun Yang ; Yacong Zhang ; Zhongjian Chen ; Guizhen Yan
Author_Institution :
Nat. Key Lab. of Micro/Nano Fabrication Technol., Peking Univ., Beijing, China
Abstract :
This paper presents a novel phase control technique based on the charge-pump PLL in an analog-digital-combined closed-loop interface circuit. The phase control resolution is 0.004° with the control range of 85~95° under worst case. The interface circuit achieves the resolution of 2.38aF with a maximum equivalent sensitivity of 98.9mV/aF in simulation. The chip is being fabricated in a 0.18um CMOS process and is 3×1.8mm2 in size.
Keywords :
analogue-digital conversion; charge pump circuits; gyroscopes; microsensors; phase control; phase locked loops; PLL-based phase control technique; analog-digital-combined closed-loop interface circuit; charge-pump PLL; cmos process; digitalized closed-loop gyroscope interface circuit; size 0.18 mum; Charge pumps; Clocks; Frequency conversion; Gyroscopes; Phase control; Phase locked loops; Semiconductor device modeling; closed-loop; gyroscope; interface; phase control;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2013 IEEE International Conference of
Conference_Location :
Hong Kong
DOI :
10.1109/EDSSC.2013.6628036
