RF SYNTHESIZER WITH DIRECT DIGITAL SYNTHESIZ

Abstract

A synthesizer of frequencies with direct digital synthesis and a frequency multiplier on PLL are developed. Phase noises of an output signal of the synthesizer, noise of a loop of PLL, level of collateral radiations on outputs of the digital synthesizer (frequency of 100 MHz) and the frequency multiplier output on a loop of PLL (frequency of 8 GHz) are probed