TEMPERATURE COMPENSATED OSCILLATORS USING SWITCHED RESISTORS

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https://hdl.handle.net/2142/124887

Title: TEMPERATURE COMPENSATED OSCILLATORS USING SWITCHED RESISTORS
Author(s): Han, Mingyuan
Issue Date: 2022-05-01
Keyword(s): Ring Oscillator, Temperature Compensation, Delta-Sigma Modulator, Clock Frequency
Date of Ingest: 2024-10-15T13:51:16-05:00
Abstract: High-quality, low-noise, power-efficient clock generators are very rare. This thesis explores different ways to generate such clocks. High-frequency crystal oscillators (XO) are very rare and fragile. Compared to XOs, on-chip oscillators will take up a much smaller area but are very vulnerable to temperature and process variation. Therefore, a temperature compensated oscillator architecture is introduced in this thesis. This architecture utilizes two opposite temperature coefficient resistors and two-point trimming to make the output frequency constant throughout out the temperature range. This chip is fabricated in the TSMC 65nm process. The temperature compensated oscillator is aiming to achieve 1000ppm as temperature varies from −40◦ C to 90◦C.
Type of Resource: text
Genre of Resource: dissertation/thesis
Language: eng

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