Title :
Highly linear TX IF-chip for multicarrier GSM 900 and 1800 base station
Author :
Rovira, Imma ; Sivonen, Pete ; Rintamaki, S. ; Honkanen, Mauri
Author_Institution :
Nokia Res. Center, Espoo, Finland
Abstract :
This paper describes an IF upconverter block, comprising buffers, a mixer, a synthesizer and a VCO, integrated into a single IC for a multicarrier GSM 900/1800 base station transmitter. Multicarrier nature in transmitter means very challenging linearity requirements, in particular when maximum integration is targeted. Therefore this chip reached a very high value of -72.5 dBc IMD3@Pout=-28 dBm/tone. An 0.8 μm CMOS process with 5 V supply was used
Keywords :
CMOS integrated circuits; cellular radio; radio transmitters; 0.8 micron; 1800 MHz; 5 V; 900 MHz; CMOS single chip; IF upconverter block; RF IC; TX-IF chip; VCO; buffer; linearity; mixer; mobile wireless communication; multicarrier GSM 900/1800 base station transmitter; synthesizer; Base stations; Chip scale packaging; FETs; Frequency; GSM; Impedance matching; Intermodulation distortion; Linearity; Transmitters; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922349
