The major difficulties are spurious signals generated in fractional divider system. In this paper, the new fractional PLL frequency synthesizer with sigma-delta modulator is described. A complete fractional PLL was simulated, constructed and measured.
The major difficulties are spurious signals generated in fractional divider system. In this paper, the new fractional PLL frequency synthesizer with sigma-delta modulator is described. A complete fractional PLL was simulated, constructed and measured. (en)