| Autor: |
Madhusudan Maiti, Suraj Kumar Saw, Abir Jyoti Mondal, Alak Majumder |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Ain Shams Engineering Journal, Vol 11, Iss 2, Pp 265-272 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2090-4479 |
| DOI: |
10.1016/j.asej.2019.10.009 |
| Popis: |
This article unveils a new hybrid configuration of ring type VCO (voltage controlled oscillator) consisting of CMOS and current starved inverter to generate full voltage swing. A certain number of such inverters are cascaded alternatively to obtain the output frequency (fosc). The novelty lies in the fact that this design offers a good trade-off of power, frequency and gate count against CMOS based or current starved based design counterpart. In a 90 nm process, the highest fosc achieved for a 7th stage VCO device footprint is 1.78 GHz with a power dissipation of 44.59 µW at a supply and control voltage of 1.2 V and 1 V respectively. The simulated phase noise and output noise of the layout read to be −95.15dBc/Hz and −144.55 dB respectively measured at 1 MHz offset frequency along with the corresponding figure of merit (FOM) of −173.67dBc/Hz. In order to understand the robustness and scalability of the proposed design, the performances are observed using Monte Carlo study and as small as UMC 28 nm CMOS process. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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