Title :
A single-chip quad-band (850/900/1800/1900 MHz) direct-conversion GSM/GPRS RF transceiver with integrated VCOs and fractional-N synthesizer
Author :
Molnar, A. ; Magoon, R. ; Hatcher, G. ; Zachan, J. ; Rhee, W. ; Damgaard, M. ; Domino, W. ; Vakilian, N.
Author_Institution :
Conexant Syst. Inc., Newport Beach, CA, USA
Abstract :
A monolithic IC has been designed which integrates all the active RF functions of a quad band GSM handset except for the power amplifier. A direct-conversion receiver (900 MHz, NF 3.0 dB, IIP2 +65 dBm) and an up-conversion loop transmitter (900 MHz spectrum at 400 kHz -65 dBc, phase noise at 20 MHz -64 dBc/Hz) using a fractional-N PLL and fully-integrated transmit and UHF VCOs.
Keywords :
UHF integrated circuits; UHF oscillators; cellular radio; frequency synthesizers; phase locked loops; phase noise; radio receivers; transceivers; voltage-controlled oscillators; 1800 MHz; 1900 MHz; 850 MHz; 900 MHz; PA; UHF VCO; direct-conversion receiver; fractional-N PLL; fractional-N synthesizer; integrated VCO; phase noise; power amplifiers; quad band GSM handset; single-chip quad-band direct conversion GSM/GPRS RF transceiver; transmit VCO; up-conversion loop transmitter; GSM; Monolithic integrated circuits; Noise measurement; Phase noise; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Radiofrequency integrated circuits; Telephone sets; Transmitters;
Conference_Titel :
Solid-State Circuits Conference, 2002. Digest of Technical Papers. ISSCC. 2002 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-7335-9
DOI :
10.1109/ISSCC.2002.993021
