Name
Abstract | ||
|---|---|---|
The main limitation of voltage-controlled oscillator based analog-to-digital converters (VCO-ADC) is the VCO non-linear voltage-to-frequency response, especially with ring-oscillators. This issue strongly restricts the final resolution we are able to get from the converter. In addition, flicker noise is a limitation for low-bandwidth applications. We propose a novel way of compensating both the VCO non-linearity and the phase noise effects. By means of a time varying switched-capacitor circuit, we build a purely analog compensation loop where jitter clock and DAC non-linearity do not suppose a limitation. The loop is closed with an opamp that provides gain to the compensation operation. The idea is proposed theoretically and tested by simulations, showing a good performance for audio or sensing applications. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1109/ISCAS45731.2020.9180397 | 2020 IEEE International Symposium on Circuits and Systems (ISCAS) |
Keywords | DocType | ISBN |
Voltage-controlled oscillators,Capacitors,Phase noise,Integrated circuit modeling,Frequency conversion,Clocks,Resistors | Conference | 978-1-7281-3320-1 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ruben Garvi | 1 | 0 | 0.34 |
| Leidy Mabel Alvero-Gonzalez | 2 | 0 | 1.01 |
| Carlos Perez | 3 | 1 | 2.04 |
| Eric Gutierrez | 4 | 14 | 5.29 |
| Luis Hernandez | 5 | 0 | 0.34 |