V-I converter-based voltage-controlled oscillator with improved linear gain characteristic
- Authors
- Ko J.[Ko J.]; An C.-H.[An C.-H.]; Kim C.[Kim C.]; Kim S.-W.[Kim S.-W.]
- Issue Date
- 2015
- Citation
- Electronics Letters, v.51, no.15, pp.1211 - 1212
- Journal Title
- Electronics Letters
- Volume
- 51
- Number
- 15
- Start Page
- 1211
- End Page
- 1212
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/50095
- DOI
- 10.1049/el.2015.1628
- Abstract
- A voltage-current (V-I) converter-based voltage-controlled oscillator (VCO) is adapted to generate multiple-phase clocks for clock and data recovery for a display driver IC. The proposed V-I converter changed the second-order current equation of the VCO to a first-order current equation of the VCO, to achieve a wide operating frequency range, a linear gain (K<inf>VCO</inf>) within a wide control voltage, low power, and a small area without any extra circuits, such as a low-to-full amplifier. Owing to the V-I converter, KVCO is changed from 8.43 to 2.05 MHz/mV with a wider V<inf>ctrl</inf> range, and its tuning range is changed from 114 to 452 MHz with a linear gain characteristic. The proposed VCO is implemented in a 1P6M 1.8 V technology and is suitable for the phase-locked loop used in flat-panel display interfaces that operate from 0.3 to 2 Gbit/s. © The Institution of Engineering and Technology 2015.
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Collections - Information and Communication Engineering > Department of Computer Engineering > 1. Journal Articles
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