The IIS Chip Gallery

GSM_IF_Strip (1997)

by

Francesco Piazza, Paolo Orsatti

Main Details

Application	Communication
Technology	250
Manufacturer	Toshiba
Type	Research Project
Package	Unknown
Voltage	2.5 V
Power	13.75 mW

Description

An IF-strip for a one chip single superheterodyne GSM receiver has been implemented in a 0.25 µm CMOS technology. The strip contains a -20..60dB 71MHz IF-amplifier, a quadrature demodulator and low-pass output filters. Measurements show an overall voltage gain of 89dB and a noise figure of 3.8dB. Phase and amplitude mismatches of the I,Q demodulator are well below 1 degree or 0.1dB respectively. The system consumes 5.5mA from a 2.5V power supply

Related Publication

• Paolo Orsatti, Francesco Piazza, Qiuting Huang, "A 0.25 um CMOS fully integrated IF-baseband-strip for a single superheterodyne GSM receiver", Proceedings of the 24th European Solid-State Circuits Conference, ESSCIRC '98, page(s): 64 - 67