Undersampled LC bandpass ΣΔ modulators with feedback FIRDACs

Abla Kammoun; Nicolas Beilleau; Hassan Aboushady

Undersampled LC bandpass ΣΔ modulators with feedback FIRDACs

Abla Kammoun^*, Nicolas Beilleau, Hassan Aboushady

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

8 Scopus citations

Abstract

A general technique for the design of undersampled LC bandpass modulators using feedback FIRDACs is proposed. The coefficients of the FIRDACs are used to increase the degrees of freedom in order to perform an exact equivalence between undersampled LC bandpass Sigma-Delta and high order DiscreteTime Sigma-Delta modulators. Using FIRDACs coefficients, it is also possible to simplify the circuit implementation by removing internal summing nodes and by decreasing coefficients spread. An undersampled 4th order LC Sigma-Delta is given as a design example. The effect of the undersampling ratio on the performance of finite quality factor LC Sigma-Delta modulators is also studied.

Original language	English (US)
Title of host publication	ISCAS 2006
Subtitle of host publication	2006 IEEE International Symposium on Circuits and Systems, Proceedings
Pages	4427-4430
Number of pages	4
State	Published - 2006
Externally published	Yes
Event	ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Greece Duration: May 21 2006 → May 24 2006

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)	0271-4310

Other

Other	ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
Country/Territory	Greece
City	Kos
Period	05/21/06 → 05/24/06

ASJC Scopus subject areas

Electrical and Electronic Engineering

Cite this

@inproceedings{6803a44d573048c0af4d26215e185070,

title = "Undersampled LC bandpass ΣΔ modulators with feedback FIRDACs",

abstract = "A general technique for the design of undersampled LC bandpass modulators using feedback FIRDACs is proposed. The coefficients of the FIRDACs are used to increase the degrees of freedom in order to perform an exact equivalence between undersampled LC bandpass Sigma-Delta and high order DiscreteTime Sigma-Delta modulators. Using FIRDACs coefficients, it is also possible to simplify the circuit implementation by removing internal summing nodes and by decreasing coefficients spread. An undersampled 4th order LC Sigma-Delta is given as a design example. The effect of the undersampling ratio on the performance of finite quality factor LC Sigma-Delta modulators is also studied.",

author = "Abla Kammoun and Nicolas Beilleau and Hassan Aboushady",

year = "2006",

language = "English (US)",

isbn = "0780393902",

series = "Proceedings - IEEE International Symposium on Circuits and Systems",

pages = "4427--4430",

booktitle = "ISCAS 2006",

note = "ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems ; Conference date: 21-05-2006 Through 24-05-2006",

}

Kammoun, A, Beilleau, N & Aboushady, H 2006, Undersampled LC bandpass ΣΔ modulators with feedback FIRDACs. in ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems, Proceedings., 1693611, Proceedings - IEEE International Symposium on Circuits and Systems, pp. 4427-4430, ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems, Kos, Greece, 05/21/06.

Undersampled LC bandpass ΣΔ modulators with feedback FIRDACs. / Kammoun, Abla; Beilleau, Nicolas; Aboushady, Hassan.
ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems, Proceedings. 2006. p. 4427-4430 1693611 (Proceedings - IEEE International Symposium on Circuits and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Undersampled LC bandpass ΣΔ modulators with feedback FIRDACs

AU - Kammoun, Abla

AU - Beilleau, Nicolas

AU - Aboushady, Hassan

PY - 2006

Y1 - 2006

N2 - A general technique for the design of undersampled LC bandpass modulators using feedback FIRDACs is proposed. The coefficients of the FIRDACs are used to increase the degrees of freedom in order to perform an exact equivalence between undersampled LC bandpass Sigma-Delta and high order DiscreteTime Sigma-Delta modulators. Using FIRDACs coefficients, it is also possible to simplify the circuit implementation by removing internal summing nodes and by decreasing coefficients spread. An undersampled 4th order LC Sigma-Delta is given as a design example. The effect of the undersampling ratio on the performance of finite quality factor LC Sigma-Delta modulators is also studied.

AB - A general technique for the design of undersampled LC bandpass modulators using feedback FIRDACs is proposed. The coefficients of the FIRDACs are used to increase the degrees of freedom in order to perform an exact equivalence between undersampled LC bandpass Sigma-Delta and high order DiscreteTime Sigma-Delta modulators. Using FIRDACs coefficients, it is also possible to simplify the circuit implementation by removing internal summing nodes and by decreasing coefficients spread. An undersampled 4th order LC Sigma-Delta is given as a design example. The effect of the undersampling ratio on the performance of finite quality factor LC Sigma-Delta modulators is also studied.

UR - http://www.scopus.com/inward/record.url?scp=34547360551&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:34547360551

SN - 0780393902

SN - 9780780393905

T3 - Proceedings - IEEE International Symposium on Circuits and Systems

SP - 4427

EP - 4430

BT - ISCAS 2006

T2 - ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems

Y2 - 21 May 2006 through 24 May 2006

ER -

Undersampled LC bandpass ΣΔ modulators with feedback FIRDACs

Abstract

Publication series

Other

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this