Ha, P.M. and Tho, N.H. and Hanh, H.H. and Nguyen-The, Q. (2019) A wide-band reference-less bidirectional continuous-rate frequency detector. In: 3rd International Conference on Recent Advances in Signal Processing, Telecommunications and Computing, SigTelCom 2019, 21 March 2019 through 22 March 2019.
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Abstract
This paper presents a wide-band half-rate frequency locked loop (FLL) circuit in 180 nm CMOS process. The bidirectional FLL includes a coarse frequency detector (CFD) and a fine frequency detector (FFD) to automatically detect a change in input data rate, acquires the new frequency without the need for an external reference clock or any programming. A modified CFD is proposed to reduce the frequency acquisition time. The simulation shows the FLL achieves wide lock range of 400Mb/s-to-2.6Gb/s and frequency acquisition time of 1.73 μs. © 2019 IEEE.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Divisions: | Faculties > Faculty of Information Technology Faculties > Faculty of Radio-Electronic Engineering |
| Identification Number: | 10.1109/SIGTELCOM.2019.8696267 |
| Uncontrolled Keywords: | Clocks; Locks (fasteners); Clock and data recovery; CMOS processs; External reference clocks; Frequency acquisition; Frequency detectors; Frequency locked loops; reference-less; Wide-band; Signal processing |
| Additional Information: | Conference code: 147634. Language of original document: English. |
| URI: | http://eprints.lqdtu.edu.vn/id/eprint/9353 |
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