Multi Band Frequency Synthesizer Based on ISPD PLL with Adapted LC Tuned VCO

The 4G front-end transceiver needs a high performance which can be obtained mainly with an optimal architecture and a multi-band Local Oscillator. In this study, we proposed and presented a new architecture of multi-band frequency synthesizer based on an Inverse Sine Phase Detector Phase Locked Loop (ISPD PLL) without any filters and any controlled gain block and associated with adapted multi band LC tuned VCO using a several numeric controlled capacitive branches but not binary weighted. The proposed architecture, based on 0.35μm CMOS process technology, supporting Multi-band GSM/DCS/DECT/ UMTS/WiMax application and gives a good performances: a phase noise @1MHz -127dBc and a Factor Of Merit (FOM) @ 1MHz - 186dB and a wide band frequency range (from 0.83GHz to 3.5GHz), that make the proposed architecture amenable for monolithic integration and 4G multi-band application.

Authors:

• Bilel Gassara
• Mahmoud Abdellaoui
• Nouri Masmoud

Keywords:

• GSM/DCS/DECT/UMTS/WiMax
• ISPD PLL
• keep and capture range
• Multi-Band
• Synthesizer
• Wireless.

References:

[1] Meng-Lin Hsia Chen, O.T.-C."A Multi-Band CMOS LC Quadrature
VCO for SM/DCS/DECT/WCDMA/Bluetooth Systems", 2006 1st
International Symposium on Wireless Pervasive Computing, ISBN: 0-
7803-9410-0, pp.1-4, Jan.2006.
[2] A. Hajimiri and T. H. Lee. "The Design of Low Noise oscillators".
Kluwer Academic Publishers, Boston, 1999.
[3] O.M.Seung et al, "A 74%, 1.56-2.71GHz, Wide-Tunable LC-Tuned
VCO in 0.35╬╝m CMOS technology", Microwave and Optical technology
letters, vol.37, N┬░2, April 2003, pp.98-100
[4] Thierry LAGUTERE, "Conceptions et modélisations d-oscillateurs et de
leurs boucles ├á verrouillage de phase associées pour des applications de
radiocommunications mobiles professionnelles", THESE Pour
l-obtention du Grade de Docteur de l-Université de Poitiers ECOLE
SUPERIEURE d-INGENIEURS DE POITIERS (Dipl├┤me national -
arr├¬té du 30 mars 1992).
[5] B.Razavi, "a 1.8GHz CMOS voltage controlled oscillator", IEEE Int.
Solid State circuits conference (ISSCC), Dig. Tech. papers, San
Francisco CA, pp.388-389, feb. 1997.
[6] N.Fong et al, "Design of wide band CMOS VCO for multiband wireless
LAN applications", IEEE J. Solid State Circuits, Vol.38, N8, pp1333-
1342, Aug. 2003.
[7] Mahmoud Abdellaoui, Bilel Gassara, N. Masmoudi, " A new model of
an Inverse Sine Phase Detector to design ISPD PLL Demodulator
without using any filters", AEUE - International Journal of Electronics
and Communications, N┬░1, Vol. 61, 2007. pp.10-21.
[8] Bilel Gassara , M. Abdellaoui, N. Masmoudi, "4G Wireless Receiver
Architecture Based On ISPD PLL Supporting GSM/DCS and WiMax
Fourth International Multi-conference on System, Signals & Devices
March 19-22 2007 Hammamet Tunisia.
[9] Mahmoud Abdellaoui, Bilel Gassara, Nouri Masmoudi, "Integrated
wideband FSK demodulator based on ISPD PLL", IEEE NEWCAS-05,
Canada, June 2005, pp. 407-410.
[10] Dalenda Ben ISSA, "Conception d-oscillateur performant pour radiomobile",
Mémoire de Mastère en électronique, Ecole nationale
d-ingénieurs de Sfax, N┬░2006-77.