Design techniques for very high speed digital delta-sigma modulators aimed at all-digital RE transmitters

Author

Frappe, Antoine ; Flament, A. ; Kaiser, Alexander ; Stefanelli, B. ; Cathelin, A.

Author_Institution

IEMN/ISEN, Lille

fYear

2006

fDate

10-13 Dec. 2006

Firstpage

1113

Lastpage

1116

Abstract

This paper presents a very high-speed delta-sigma modulator for achieving digital generation of radio-frequency signals. About 68 dB of ACLR (adjacent channel leakage ratio) is obtained on the 7.8 GS/s output of the delta-sigma modulator for WCDMA standard. This is achieved by using original concepts like borrow-save arithmetic, non-exact quantization and differential dynamic logic.

Keywords

code division multiple access; delta-sigma modulation; radio transmitters; very high speed integrated circuits; WCDMA standard; adjacent channel leakage ratio; all-digital RF transmitters; borrow-save arithmetic; differential dynamic logic; nonexact quantization; radio-frequency signals; very high speed digital delta-sigma modulators; Arithmetic; Delta modulation; Delta-sigma modulation; Digital modulation; Logic; Multiaccess communication; Quantization; Radio frequency; Radio transmitters; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on

Conference_Location

Nice

Print_ISBN

1-4244-0395-2

Electronic_ISBN

1-4244-0395-2

Type

conf

DOI

10.1109/ICECS.2006.379634

Filename

4263566

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2962126