Abstract
All-digital PLLs (ADPLL) based on a ring-oscillator (RO) provide very fast settling, but they suffer from quantization (Q) noise due to discrete tuning of their digitally controlled oscillator (DCO). Although RO charge-pump PLLs (CP-PLL) do not exhibit Q-noise thanks to their continuous VCO tuning, they are quite slow and require huge VCO gain. We propose a hybrid-PLL in 7nm FinFET CMOS that combines the best advantages of ADPLL and CP-PLL with a periodical phase realignment by the reference clock. It covers 0.2GHz-4GHz with 0.619ps integrated jitter and settles in 0.6us.
Original language | English |
---|---|
Title of host publication | 2018 Symposium on VLSI Circuits Digest of Technical Papers |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 183-184 |
Number of pages | 2 |
Volume | 2018-June |
ISBN (Electronic) | 978-1-5386-4214-6 |
DOIs | |
Publication status | Published - 22 Oct 2018 |
Externally published | Yes |
Event | 2018 Symposia on VLSI Technology and Circuits: 2018 VLSI Technology Symposium - 2018 VLSI Circuits - Hilton Hawaiian Village, Honolulu, United States Duration: 18 Jun 2018 → 22 Jun 2018 |
Conference
Conference | 2018 Symposia on VLSI Technology and Circuits |
---|---|
Country/Territory | United States |
City | Honolulu |
Period | 18/06/18 → 22/06/18 |