An inverted ring oscillator noise-shaping time-to-digital converter with in-band noise reduction and coherent noise cancellation

• Main Authors: Yi, Xiang, Liang, Zhipeng, Boon, Chirn Chye, Feng, Guangyin, Meng, Fanyi, Yang, Kaituo
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; CMOS Digital Phase-Locked Loop (DPLL); Controlled Oscillator-Based Time-To-Digital Converter (TDC)
• Online Access: https://hdl.handle.net/10356/144727
• Institution: Nanyang Technological University

This article presents a noise-shaping time-to-digital converter (TDC) based on an inverted ring oscillator (IRO). By inverting the oscillation direction, the proposed IRO-TDC achieves quantization error and mismatch noise shaping, in-band noise reduction, coherent noise cancellation, and low disturb...