JICCE (한국정보통신학회)
Current Result Document :
| 한글제목(Korean Title) |
Temperature Dependent Characteristics Analysis of FLL Circuit |
| 영문제목(English Title) |
Temperature Dependent Characteristics Analysis of FLL Circuit |
| 저자(Author) |
Jin-Ho Choi
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| 원문수록처(Citation) |
VOL 07 NO. 01 PP. 0062 ~ 0065 (2009. 03) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
In this paper, the temperature characteristics of full CMOS FLL(frequency locked loop) are analyzed. The FLL circuit is used to generate an output signal that tracks an input reference signal. The locking time of FLL is short compared to PLL(phase locked loop) circuit because the output signal of FLL is synchronized only in frequency. Also the FLL is designed to allow the circuit to be fully integrated. The FLL circuit is composed two FVCs, two buffers, a VCO and two frequency dividers. The temperature variation of frequency divider, FVC and buffer cancelled because the circuit structure is the same and the temperature effect is cancelled by the comparator. Simulation results are shown to illustrate the performance of the designed FLL circuit with temperature.
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| 키워드(Keyword) |
frequency locked loop
frequency-to-voltage conver
temperature stable characteristics
voltage controlled oscillator
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| 파일첨부 |
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