A PLL for GSM/WCDMA
Kluwer Academic Publishers eBooks · 2006
A fully integrated dual-mode frequency synthesizer for GSM and WCDMA standards is presented. It is shown that the hardware sharing can be maximized by a careful frequency planing and architecture selection. A hybrid Integer-N and fractional-N architecture is proved to be useful for hardware sharing and performance improvement. A dual-band RF VCO is designed.