Title :
Ultralow frequency oscillator composed of three switched-capacitor phase shifters
Author :
Miyazaki, T. ; Minamitake, C. ; Horie, Y. ; Takeishi, T.
Author_Institution :
Dept. of Electr. & Electron. Eng., Kagoshima Univ., Japan
Abstract :
An ultralow frequency oscillator is discussed in which switched capacitors (SC) are used instead of resistors in CR phase shifters. The oscillation was stable down to the order of 10 /spl mu/Hz. The oscillation frequency varied linearly with the clock frequency of SC. An automatic gain controller is also discussed.
Keywords :
automatic gain control; frequency stability; phase shifters; switched capacitor networks; voltage-controlled oscillators; 10 muHz; CR phase shifters; automatic gain controller; clock frequency; oscillation frequency; switched-capacitor phase shifters; ultralow frequency oscillator; Capacitance; Capacitors; Chromium; Clocks; Frequency; Information science; Oscillators; Phase shifters; Resistors; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547143
