A CMOS baseband complex bandpass filter with a new Automatic tuning method for PHS applications

Author

Pu, YoungGun ; Jung, SungKyu ; Park, DoJin ; Kim, JinKyung ; Jung, JiHoon ; Nam, Chul ; Lee, Kang-Yoon

Author_Institution

Konkuk Univ., Seoul

fYear

2007

fDate

11-13 Sept. 2007

Firstpage

500

Lastpage

503

Abstract

This paper presents a baseband complex bandpass filter for PHS applications with a new automatic tuning method. The full-CMOS PHS transceiver is implemented by adopting the Low-IF architecture to overcome the DC-offset problems. To meet the adjacent channel selectivity (ACS) performance, the 3rd-order Chebyshev complex bandpass filter is designed as the baseband channel-select filter. The new corner frequency tuning method is proposed to compensate the process variation. This method can reduce the noise level due to MOS switches. The filter was fabricated using a 0.35 mum CMOS process, and the power consumption is 12 mW.

Keywords

Chebyshev filters; band-pass filters; mobile handsets; transceivers; tuning; CMOS; Chebyshev complex bandpass filter; DC-offset problems; adjacent channel selectivity; automatic tuning method; baseband complex bandpass filter; low-iintermediate frequency architecture; personal handyphone system transceiver; power 12 mW; size 0.35 mum; Band pass filters; Baseband; CMOS process; Chebyshev approximation; Energy consumption; Frequency; Noise level; Switches; Transceivers; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid State Circuits Conference, 2007. ESSCIRC 2007. 33rd European

Conference_Location

Munich

ISSN

1930-8833

Print_ISBN

978-1-4244-1125-2

Type

conf

DOI

10.1109/ESSCIRC.2007.4430351

Filename

4430351