A baseband mixed signal ASIC for CDMA subscriber equipment applications

Author

Nettles, MaryJo ; Robert, Christopher ; Weiland, Ana ; Wheatley, Charles E., III ; McKay, Ian ; Ulbrich, Steven

Author_Institution

QUALCOMM Inc., San Diego, CA, USA

fYear

1993

Firstpage

23

Lastpage

26

Abstract

An implementation of the baseband mixed signal processing required in a code division multiple access (CDMA) telephone is discussed. These processing blocks include quadrature up and down conversion between a 5 MHz intermediate frequency and baseband, active filtering, A/D and D/A converters clocking at 10 MHz, and clock conditioning circuits

Keywords

analogue processing circuits; analogue-digital conversion; bipolar analogue integrated circuits; cellular radio; code division multiple access; digital-analogue conversion; mixed analogue-digital integrated circuits; 10 MHz; ADC; CDMA subscriber equipment; CDMA telephone; D/A converters; active filtering; baseband mixed signal ASIC; clock conditioning circuits; down conversion; portable telephone; quadrature conversion; up conversion; Active filters; Application specific integrated circuits; Baseband; Clocks; Demodulation; Filtering; Multiaccess communication; Nonlinear distortion; Signal processing; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC Conference and Exhibit, 1993. Proceedings., Sixth Annual IEEE International

Conference_Location

Rochester, NY

Print_ISBN

0-7803-1375-5

Type

conf

DOI

10.1109/ASIC.1993.410799

Filename

410799