Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14676
Title: Study of SAW resonator based band pass delta-sigma modulators
Authors: SUN WAI HOONG
Keywords: delta-sigma, band pass (BP), analog to digital converter (ADC), surface acoustic wave (SAW), anti-resonance cancellation, multi-feedback
Issue Date: 4-Apr-2005
Source: SUN WAI HOONG (2005-04-04). Study of SAW resonator based band pass delta-sigma modulators. ScholarBank@NUS Repository.
Abstract: The superheterodyne receiver with a band pass analog to digital converter (ADC) architecture promises a reduction in size and power consumption in conventional radio frequency receivers. To realize this architecture, a band pass ADC that operates at high frequencies with high selectivity is needed. This thesis explores the possibility of employing surface acoustic wave (SAW) resonators in delta- sigma modulators. It promises digitization of signals with high selectivity at high frequencies. A fourth order band pass continuous time delta-sigma modulator employing SAW resonators was designed and implemented. The anti-resonance cancellation circuit and multi-feedback architecture were used in the modulator. The modulator was fabricated in 0.8um BYR technology. The modulator was found to be highly sensitive to small changes in capacitance in the anti-resonance cancellation circuit. Future work could look into making the anti-resonance cancellation circuit more robust.
URI: http://scholarbank.nus.edu.sg/handle/10635/14676
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
SunWH.pdf3.92 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

218
checked on Dec 18, 2017

Download(s)

274
checked on Dec 18, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.