A multi-chip receiver module for PCS1900 and DCS1800 GSM basestations

Abstract

This paper describes a multi-chip receiver module for a GSM based PCS1900/DCS1800 radio. The module downconverts a filtered RF signal to the 271 kHz second IF using dual heterodyne conversion. The module contains one GaAs die, two Si dice and two SAW IF filters along with the associated passive components on a single layer ceramic substrate. A full description of the module function is presented including the functional description of the individual circuits and measurements of the module performance.