Title :
A Low-Voltage Fast Switching Frequency Synthesizer for FH-SS Applications
Author :
Tsang, Kim Fung ; Yuen, Chung Ming
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong
Abstract :
This brief presents a novel 2.7-V frequency synthesizer for frequency hopping spread spectrum applications. To accomplish fast switching, the frequency synthesizer utilizes a memory access technique to retrieve the precalibrated and digitized tuning voltage values. The phase noise and the frequency accuracy of the frequency synthesizer are analyzed. The channel efficiency, the frequency switching performance, and the output spectral purity are investigated at 2.4 GHz. Measurement shows that the channel switching time is 5 mus. Thus, the proposed synthesizer is promising for frequency hopping wireless communication. The developed architecture is ready to be used for application-specified integrated circuit design
Keywords :
application specific integrated circuits; frequency hop communication; frequency synthesizers; phase noise; spread spectrum communication; 0.5 mus; 2.4 GHz; 2.7 V; application-specified integrated circuit; frequency hop communication; frequency hopping spread spectrum; frequency synthesizers; memory access; phase noise; Communication switching; Frequency synthesizers; Integrated circuit measurements; Phase noise; Spread spectrum communication; Switching frequency; Time measurement; Tuning; Voltage; Wireless communication; Frequency hop communication; frequency synthesizers; phase-locked loop (PLL);
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2006.884111
