A Spread Spectrum Clock Generator Using a Programmable Linear Frequency Modulator for Multipurpose Electronic Devices
- Authors
- Ryu, Hyuk; Park, Sangyong; Sung, Eun-Taek; Lee, Seung-Gi; Baek, Donghyun
- Issue Date
- Dec-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- EMI reduction; frequency modulation; phase locked loop (PLL); spread spectrum clock generator (SSCG)
- Citation
- IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, v.57, no.6, pp 1447 - 1456
- Pages
- 10
- Journal Title
- IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
- Volume
- 57
- Number
- 6
- Start Page
- 1447
- End Page
- 1456
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/8876
- DOI
- 10.1109/TEMC.2015.2442618
- ISSN
- 0018-9375
1558-187X
- Abstract
- This paper presents a fractional-N phase-locked loop based spread spectrum clock generator (SSCG) using a programmable linear frequency modulator. The SSCG provides a programmable frequency deviation and modulation frequency regardless of its operating frequency. The ranges of frequency-deviation ratio and modulation frequency are 0-80% and 0-100 kHz with 610 Hz step resolution. The proposed SSCG successfully support five serial-link standards by using a single SSCG, and can be applied to various switching circuits such as class-D power amplifiers or switching power converters. The EMI reduction was measured to be 10.24-13.94 dB under 100-kHz resolution bandwidth. The proposed SSCG was fabricated using a 0.13-mu m CMOS process with an active area of 0.11 mm(2), while consuming an overall power of 6.28 mW at 1 GHz.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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