Title :
CMOS current-controlled oscillators using multiple-feedback-loop ring architectures
Author :
Dong-Youl Jeong ; Sang-Hoon Chai ; Won-Chul Song ; Gyu-Hyeong Cho
Author_Institution :
Korea Adv. Energy Res. Inst., Taejon, South Korea
Abstract :
Three types of high-frequency current-controlled oscillators (ICO) having multiple-feedback loops are implemented in a 0.8 /spl mu/m CMOS technology. Three stage single-feedback-loop ICO (SICO) and double-feedback-loop ICO (DICO) and four-stage triple-feedback-loop ICO (TICO) are tested and compared. They all use the differential current steering logic (DCSL). Using the multiple-feedback-loop ring architectures, the operation frequencies of the ICO´s are considerably improved and obtained 1.69 GHz.
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; UHF oscillators; feedback oscillators; 0.8 micron; 1.69 GHz; CMOS current-controlled oscillator; DICO; SICO; TICO; differential current steering logic; high-frequency circuit; multiple-feedback-loop ring architecture; CMOS logic circuits; CMOS technology; Communication system control; Current supplies; Delay; Frequency; Paper technology; Phase noise; Ring oscillators; Voltage control;
Conference_Titel :
Solid-State Circuits Conference, 1997. Digest of Technical Papers. 43rd ISSCC., 1997 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3721-2
DOI :
10.1109/ISSCC.1997.585452
