@article{(Open Science Index):https://publications.waset.org/pdf/13830, title = {Multi Band Frequency Synthesizer Based on ISPD PLL with Adapted LC Tuned VCO}, author = {Bilel Gassara and Mahmoud Abdellaoui and Nouri Masmoud}, country = {}, institution = {}, abstract = {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.}, journal = {International Journal of Electronics and Communication Engineering}, volume = {1}, number = {9}, year = {2007}, pages = {1260 - 1266}, ee = {https://publications.waset.org/pdf/13830}, url = {https://publications.waset.org/vol/9}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 9, 2007}, }