DocumentCode :
81896
Title :
A Quarter-Rate Forwarded Clock Receiver Based on ILO With Low Jitter Tracking Bandwidth Variation Using Phase Shifting Phenomenon in 65 nm CMOS
Author :
Young-Ju Kim ; Sang-Hye Chung ; Lee-Sup Kim
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Volume :
61
Issue :
8
fYear :
2014
fDate :
Aug. 2014
Firstpage :
2482
Lastpage :
2490
Abstract :
This paper presents a quarter-rate forwarded clock (FC) receiver based on an injection-locked oscillator (ILO) which exploits a phenomenon in which phases of the output clock are shifted by the duty-cycle of an injection clock. Also, this paper describes the principle of this phase shifting phenomenon. To utilize the phase shifting phenomenon, a simple duty-cycle adjuster (DCA) is proposed. By using the DCA, the proposed FC receiver achieves 760 MHz of wide jitter tracking bandwidth (JTB) and 60 MHz JTB variation in spite of clock deskew. The proposed receiver achieves a 12 Gb/s data rate with 0.92 mW/Gb/s in a 1 V 65 nm CMOS process.
Keywords :
CMOS digital integrated circuits; clocks; injection locked oscillators; jitter; CMOS integrated circuit; ILO; bit rate 12 Gbit/s; duty cycle adjuster; injection clock; injection locked oscillator; low jitter tracking bandwidth variation; phase shifting phenomenon; quarter rate forwarded clock receiver; size 65 nm; voltage 1 V; wide jitter tracking bandwidth; Clocks; Frequency control; Generators; Jitter; Phase locked loops; Receivers; Voltage-controlled oscillators; Duty-cycle adjuster; forwarded clock receiver; injection-locked oscillator; quarter-rate clocking;
fLanguage :
English
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
Publisher :
ieee
ISSN :
1549-8328
Type :
jour
DOI :
10.1109/TCSI.2014.2332262
Filename :
6849506
Link To Document :
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