Voltage-controlled oscillators are widely used circle blocks, particularly in phase-
locked loops. As CMOS is the technology of choice for many applications, CMOS
oscillators with low timing jitter are highly desired.
In this thesis, two types of VCO based on differential ring oscillator and relaxation oscillator are proposed. We describes the effect of supply noise on the performance of differential ring and relaxation oscillators. Compared to the conventional VCO, the proposed VCOs have lower sensitivity to noise on the power supply and also provided a high linearity gain (Kvco) which decreases the VCO jitter in the PLL circuit and improve the system stability. Both of VCOs are designed in TSMC 0.35£gm 2P4M Mixed-Signal process technology.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0721105-140806 |
| Date | 21 July 2005 |
| Creators | Lan, Jian-Jia |
| Contributors | Yao-Tsung Tsai, Shiang-Hwua Yu, Chia-Hsiung Kao, Jyi-Tsong Lin |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0721105-140806 |
| Rights | not_available, Copyright information available at source archive |
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