Phase Locked Loop Based Integer N Frequency Synthesizer - Jyoti P Patra

The present work describes about a phase locked loop (PLL) based integer n frequency synthesizer for unlicensed national information infrastructure (UNII) lower band. It covers a frequency range of 5.15 - 5.25 GHz which is used by IEEE 802.11a. For simplification of design, the channel spacing of the frequency synthesizer is taken to be 5 MHz. The frequency synthesizer consists of a phase frequency detector (PFD), a charge pump (CP), a second order loop filter (LP), a voltage controlled oscillator..