Title :
A new prescaler for fully integrated 5-GHz CMOS frequency synthesizer
Author :
Chen, Chin-Sheng ; Chang, Robert C.
Author_Institution :
Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan
Abstract :
A new prescaler for a fully integrated 5-GHz CMOS frequency synthesizer is presented in this paper. The prescaler based on source-coupled logic (SCL) is designed to reduce switching noise, power consumption, and area. The circuit is implemented by using TSMC 0.25-μm 1P5M CMOS technology with 2.5 V power supply. The power consumption of the improved divide-by-two circuit for the prescaler is 3.45-mW at 2.5 V and 5.32 GHz, which is almost half of the power consumption of the original circuit.
Keywords :
CMOS integrated circuits; frequency synthesizers; integrated circuit noise; power consumption; prescalers; 0.25 micron; 2.5 V; 3.45 mW; 5 GHz; 5.32 GHz; CMOS frequency synthesizer; CMOS technology; power consumption; prescaler; source coupled logic; switching noise reduction; CMOS logic circuits; CMOS technology; Circuit noise; Circuit synthesis; Energy consumption; Frequency synthesizers; Noise reduction; Switches; Switching circuits; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328986
