CMOS analog baseband channel filter for direct a conversion WCDMA receiver

Author

Konfal, M. ; Choy, Chiu Sing ; Pun, Kong Pang ; Chan, Cheung Fat ; Cheng, W.C.

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

1

fYear

2003

fDate

21-24 Oct. 2003

Firstpage

577

Abstract

The direct conversion receiver architecture is a good candidate to achieve wireless transceiver systems-on-chip, because, among other reasons, the channel selection filter is lowpass and can be implemented on-chip. This paper reports the design of an analog baseband filter chain for a direct conversion WCDMA receiver. The filter chain consists of a 5th order Chebyshev lowpass active RC filter with automatic frequency tuning, a programmable gain amplifier (PGA), and a DC servo feedback circuit to suppress the DC offset.

Keywords

CMOS analogue integrated circuits; Chebyshev filters; active filters; circuit feedback; code division multiple access; low-pass filters; radio receivers; system-on-chip; transceivers; tuning; CMOS analog baseband channel selection filter; Chebyshev lowpass active RC filter; DC offset; DC servo feedback circuit; PGA; analog baseband filter chain; automatic frequency tuning,; complementary metal oxide semiconductor; direct conversion WCDMA receiver architecture; programmable gain amplifier; system on chip; wireless code division multiple access receiver architecture; wireless transceivers;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC, 2003. Proceedings. 5th International Conference on

ISSN

1523-553X

Print_ISBN

0-7803-7889-X

Type

conf

DOI

10.1109/ICASIC.2003.1277615

Filename

1277615