GSM/GPRS single-chip in 130nm CMOS: challenges on RF for SoC integration

Since CMOS GSM-radio-transceiver are established on the market a few years ago the next evolutionary step is a complete GSM/GPRS baseband-RF-SoC integration. It promises lowest production cost, easiest board integration and the highest flexibility in system optimization. However, crosstalk from digital into analog and RF blocks is a severe constraint. In this paper we have presented the main cross coupling effects and challenges for the RF integration. Potential countermeasures to fulfil GSM performance are discussed. The achieved RF performance was demonstrated with measurement results