Title :
1-bit digital tuning of continuous-time filter by the use of unstable sigma-delta modulation
Author :
Kuang, Wensheng V. ; Wight, Jim
Author_Institution :
Samsung Telecommun. of America, Richardson, TX, USA
Abstract :
A 1-bit digital frequency tuning technique for continuous-time filter is presented. Unstable sigma-delta modulation is used. A 1-bit digital tuning signal can be generated by detecting the stability of a highly unstable sigma-delta modulation loop. Simulations on a third-order and a fourth-order sigma-delta modulation loops show up to 2% tuning accuracy that can be reached with the 1-bit tuning technique.
Keywords :
circuit tuning; continuous time filters; sigma-delta modulation; 1-bit digital frequency tuning technique; continuous-time filter; digital tuning signal; fourth-order sigma-delta modulation; third-order sigma-delta modulation; unstable sigma-delta modulation; Arithmetic; Authentication; Data communication; Delta-sigma modulation; Digital filters; Elliptic curve cryptography; Hardware; Public key; Public key cryptography; Throughput;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5117680
