RFIC 2005, Long Beach, California, USA, Juni 2005

Digital RF CMOS Transceivers for GPRS and EDGE

Christian Münker¹, Bernd-Ulrich Klepser¹, Burkhard Neurauter² and Christian Mayer²

¹ Infineon Technologies AG, P.O. Box 800949, 81609 Munich, Germany
² DICE GmbH & Co KG, Freistädterstr. 315, 4040 Linz, Austria

Inhalt: A GPRS RF solution using sigma-delta modulation and an EDGE RF solution using digital polar modulation are presented. The single-chip, quad-band transceivers have been implemented in a 0.13µm CMOS technology. The lock-in time of the sigma-delta modulator with integrated loop filter is less than 120µs with a phase error of 1.2° rms and an output power of 3.5 dBm; it is fully compliant to the GSM specification. The EDGE transceiver shows a nominal margin of 11 dB to the critical 400kHz specification with a transmit EVM of 2.5%.

Volltext (290 kB)   Folien (330 kB)