A Programmable On-Chip Reference Oscillator With Slow-Wave Coplanar Waveguide in 14-nm FinFET CMOS
| Autor: | Yeojoon Youn, Sang-Hyeok Chu, Gyu-Seob Jeong, Taeik Kim, Deog-Kyoon Jeong, Jeongho Hwang, Woo-Seok Kim |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Offset (computer science) business.industry Coplanar waveguide dBc 020206 networking & telecommunications 02 engineering and technology 01 natural sciences Temperature measurement CMOS 0103 physical sciences Phase noise 0202 electrical engineering electronic engineering information engineering Optoelectronics Electrical and Electronic Engineering business |
| Zdroj: | IEEE Transactions on Circuits and Systems II: Express Briefs. 67:1834-1838 |
| ISSN: | 1558-3791 1549-7747 |
| Popis: | This brief presents a programmable on-chip reference oscillator based on a slow-wave coplanar waveguide (S-CPW). The frequency is determined mainly by its geometric structure with floating stripes, thereby enjoying an advantage of being less sensitive to PVT variations, especially due to self-heating of FinFET devices. The S-CPW is carefully designed with 3-D EM simulations. In addition, the proposed reference oscillator is widely programmable for multi-standard System on-a-Chip (SoC) applications utilizing a programmable divider using 7-bit multi-modulus divider. The oscillator fabricated in 14-nm FinFET CMOS technology consumes 2.8 mW at the frequency of 200 MHz and occupies an active area of 0.53 mm2. Phase noise is −147.5 dBc/Hz at 1-MHz offset at the frequency of 25 MHz. The proposed oscillator exhibits frequency variation of only 37 ppm/°C and 0.52 %/V with 25-MHz clock generation. |
| Databáze: | OpenAIRE |
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