A Linear Multi-Band Voltage-Controlled Oscillator with Process Compensation for SerDes Applications
A new voltage-controlled oscillator (VCO) topology for serializer–deserializer (SerDes) applications is proposed in this paper. The topology is suitable for SATA, PCI Express, and USB 3 protocols. The VCO is based on two-ring oscillator cores and operates in several frequency bands, as required by t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/13/3/581 |
| _version_ | 1797318889425600512 |
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| author | Panagiotis Bertsias Andreas Tsimpos George Souliotis |
| author_facet | Panagiotis Bertsias Andreas Tsimpos George Souliotis |
| author_sort | Panagiotis Bertsias |
| collection | DOAJ |
| description | A new voltage-controlled oscillator (VCO) topology for serializer–deserializer (SerDes) applications is proposed in this paper. The topology is suitable for SATA, PCI Express, and USB 3 protocols. The VCO is based on two-ring oscillator cores and operates in several frequency bands, as required by the corresponding protocol specifications, with a constant VCO gain and improved linear control over the frequency tuning. Additionally, it is supported by an automatic digital compensation mechanism for process variations. The VCO has been designed to cover the several speeds of the SATA and PCI Express protocols, with optimized performance in all of them, including the current consumption, the phase noise, and the frequency tuning in each case. Designed in a CMOS 22 nm technology node with a 0.8 V supply voltage, it can achieve, at 3 GHz frequency, a phase noise better than −90 dBc/Hz at 1 MHz offset and an average power consumption equal to 3.84 mW. Extended digital control can set optimized configurations for phase noise, current consumption, and VCO gain vs. process variations. Extensive post-layout simulation results verify the superior performance. |
| first_indexed | 2024-03-08T03:58:56Z |
| format | Article |
| id | doaj.art-bd947c145d224f0783b31d144a3c7673 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-08T03:58:56Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-bd947c145d224f0783b31d144a3c76732024-02-09T15:10:42ZengMDPI AGElectronics2079-92922024-01-0113358110.3390/electronics13030581A Linear Multi-Band Voltage-Controlled Oscillator with Process Compensation for SerDes ApplicationsPanagiotis Bertsias0Andreas Tsimpos1George Souliotis2Adveos Microelectronic Systems, 15451 Athens, GreeceAdveos Microelectronic Systems, 15451 Athens, GreeceDepartment of Electrical and Computer Engineering, University of Peloponnese, 26334 Patras, GreeceA new voltage-controlled oscillator (VCO) topology for serializer–deserializer (SerDes) applications is proposed in this paper. The topology is suitable for SATA, PCI Express, and USB 3 protocols. The VCO is based on two-ring oscillator cores and operates in several frequency bands, as required by the corresponding protocol specifications, with a constant VCO gain and improved linear control over the frequency tuning. Additionally, it is supported by an automatic digital compensation mechanism for process variations. The VCO has been designed to cover the several speeds of the SATA and PCI Express protocols, with optimized performance in all of them, including the current consumption, the phase noise, and the frequency tuning in each case. Designed in a CMOS 22 nm technology node with a 0.8 V supply voltage, it can achieve, at 3 GHz frequency, a phase noise better than −90 dBc/Hz at 1 MHz offset and an average power consumption equal to 3.84 mW. Extended digital control can set optimized configurations for phase noise, current consumption, and VCO gain vs. process variations. Extensive post-layout simulation results verify the superior performance.https://www.mdpi.com/2079-9292/13/3/581VCOmulti-band VCOwide range VCOPCIeSATASerDes |
| spellingShingle | Panagiotis Bertsias Andreas Tsimpos George Souliotis A Linear Multi-Band Voltage-Controlled Oscillator with Process Compensation for SerDes Applications Electronics VCO multi-band VCO wide range VCO PCIe SATA SerDes |
| title | A Linear Multi-Band Voltage-Controlled Oscillator with Process Compensation for SerDes Applications |
| title_full | A Linear Multi-Band Voltage-Controlled Oscillator with Process Compensation for SerDes Applications |
| title_fullStr | A Linear Multi-Band Voltage-Controlled Oscillator with Process Compensation for SerDes Applications |
| title_full_unstemmed | A Linear Multi-Band Voltage-Controlled Oscillator with Process Compensation for SerDes Applications |
| title_short | A Linear Multi-Band Voltage-Controlled Oscillator with Process Compensation for SerDes Applications |
| title_sort | linear multi band voltage controlled oscillator with process compensation for serdes applications |
| topic | VCO multi-band VCO wide range VCO PCIe SATA SerDes |
| url | https://www.mdpi.com/2079-9292/13/3/581 |
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