UM  > 科技學院  > 電機及電腦工程系
Jitter-resistant Capacitor Based Sine-Shaped DAC for Continuous-Time Sigma-Delta modulators
Da Feng1; Franco Maloberti2; Sai-Weng Sin1; Seng-Pan U1,3; Rui P. Martins1,4
2014
Conference NameIEEE International Symposium on Circuits and Systems (ISCAS)
Source Publication2014 IEEE International Symposium on Circuits and Systems (ISCAS)
Pages1348-1351
Conference DateJUN 01-05, 2014
Conference PlaceMelbourne, AUSTRALIA
Abstract

A novel current mode Capacitor Based Sine-Shaped (CBSS) Digital-to-Analog Converter (DAC) for Continuous-Time (CT) Sigma-Delta (ΣΔ) modulators, enabling smooth zero current transitions and greatly reducing the clock jitter noise, is described. The circuit is switched capacitor based and uses a cosine-wave voltage reference instead of constant current. The output is a sine-shaped waveform with precise zero transitions. Locking the reference cosine-wave voltage and the clock employed for data sampling ensures a virtual immunity to clock jitter. The use of a cosine-wave as reference and a constant capacitance loading the reference generator facilitates impedance matching thus making the scheme suitable for very high sampling rate. Moreover, the good matching between capacitors determines the accuracy of the integrators' time constant and multi-bit linearity of the proposed DAC. The feature of the method has been verified with behavioral simulations and tested in a second order ΣΔ modulator. 

DOIhttp://doi.org/10.1109/ISCAS.2014.6865393
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000346488600341
Fulltext Access
Citation statistics
Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeConference paper
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.Faculty of Science and Technology, University of Macau, Macau, CHINA
2.Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Via Ferreta, 1-27100 Pavia-ITALY
3.Synopsys-Chipidea Microelectrnics(Macau) Limited
4.on leave from Instituto Superior Técnico /Universidade de Lisboa, Portugal.
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Da Feng,Franco Maloberti,Sai-Weng Sin,et al. Jitter-resistant Capacitor Based Sine-Shaped DAC for Continuous-Time Sigma-Delta modulators[C],2014:1348-1351.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Da Feng]'s Articles
[Franco Maloberti]'s Articles
[Sai-Weng Sin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Da Feng]'s Articles
[Franco Maloberti]'s Articles
[Sai-Weng Sin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Da Feng]'s Articles
[Franco Maloberti]'s Articles
[Sai-Weng Sin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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