Return to search

Distributed Feedback and Feedforward of Discrete-Time Sigma-Delta Modulator

This paper presents a distributed feedback and feedforward of discrete-time delta sigma modulator applications in the radio. We know the delta-sigma modulator using oversampling and noise shaping technique, thus we can relax the specifications of the components. This paper described the architectural differences and compare, the in-band signal is less sensitive to noise interference, and improve the resolution of the circuit. In the resonator, a simple structure with a small number of capacitor in resonator circuit.
This paper uses the TSMC 0.18£gm process parameters to the simulation, implementation, and measurement. Our fourth-order discrete-time delta-sigma modulator specifications as follows: the input signal frequency is 10.7MHz, the sampling frequency is 42.8MHz, the signal bandwidth is 200kHz, oversampling rate is 107, and one bit quantizer.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0723112-194253
Date23 July 2012
CreatorsChiu, Jih-Chin
ContributorsChia-Hsiung Kao, Tzyy-Sheng Horng, Jyi-Tsong Lin, Ko-Chi Kuo
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0723112-194253
Rightsuser_define, Copyright information available at source archive

Page generated in 0.0018 seconds