A programmable CMOS RF frequency synthesizer for multi-standard wireless applications

This paper deals with a new frequency synthesizer dedicated to multi-standard wireless applications. It converts a 50 MHz wave clock into two outputs in quadrature phase. It takes advantage of the DLL topology in terms of jitter and phase noise and has no external element. Simulations of the structure designed with a 130 nm SOI CMOS technology confirming the performance of the system are also presented.