Yao-Hong
9 records found
1
Authored
This paper presents a wakeup timer in 40-nm CMOS for Internet-of-Things (IoT) applications based on a bang-bang Digital-intensive Frequency-Locked Loop (DFLL). A self-biased Σ Δ Digitally Controlled Oscillator (DCO) is locked to an RC time constant via a feedback loop consisti ...
In this paper, we propose a method to suppress supply pushing of an LC oscillator such that it may directly operate from a switched-mode dc-dc converter generating fairly large ripples. A ripple replication block (RRB) generates an amplified ripple replica at the gate terminal ...
For remote vital signs and occupancy detection in many smart home/building applications, radar sensors are a preferred option over cameras, due to privacy preservation and robustness to ambient light conditions. These radars not only need to provide precise range and vital sig ...
This paper presents a 1.8-2.7 GHz low-power ring-oscillator-based fractional-N injection-locked digital PLL (IL-DPLL) in 40-nm CMOS for Internet-of-Things clock generation. A two-path injection technique is proposed to improve the in-band phase noise and the integrated jitter ...
We propose an ultra-low-power (ULP) and low-voltage phase-tracking RX for IoT applications. Several popular standards are defined for IoT, e.g., IEEE802.15.4 and Bluetooth Low Energy (BLE), where they envision massive numbers of interconnected sensors; however, the cost of rep ...