A low distortion linear-tunable continuous-time 488 kHz fifth-order Bessel filter

Author

Egerer, Jens ; Desel, Thomas ; Popken, Popken ; Boxho, Jean ; Macq, Damien ; Cornil, Jean-Philippe

Author_Institution

Fraunhofer Inst. fur Integrierte Schaltungen, Erlangen, Germany

fYear

1998

fDate

13-16 Sep 1998

Firstpage

47

Lastpage

50

Abstract

For an HDSL analog front end, a low distortion 5^th order R-MOSFET-C Bessel filter was designed in a 0.5 μm, 3.3 V CMOS technology. The filter is linearly tunable around cutoff frequencies of 488 kHz and 335 kHz by an on-chip tuning circuit. The fabricated prototypes show linear tuning and a THD<-75 dB for a 100 kHz signal

Keywords

Bessel functions; CMOS analogue integrated circuits; circuit tuning; continuous time filters; digital subscriber lines; harmonic distortion; 0.5 micron; 100 kHz; 3.3 V; 335 kHz; 488 kHz; CMOS technology; HDSL analog front end; R-MOSFET-C Bessel filter; THD; cutoff frequencies; fifth-order Bessel filter; linear-tunable continuous-time filter; on-chip tuning circuit; Active filters; CMOS technology; Circuit optimization; Cutoff frequency; Microelectronics; Nonlinear filters; Resistors; Telecommunications; Tunable circuits and devices; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC Conference 1998. Proceedings. Eleventh Annual IEEE International

Conference_Location

Rochester, NY

ISSN

1063-0988

Print_ISBN

0-7803-4980-6

Type

conf

DOI

10.1109/ASIC.1998.722801

Filename

722801