Patent ID: 7236063
Filing Date: 2007-06-26
Classification: H03C,H03L

Abstract:
1. A wide band modulation PLL, comprising: a PLL part, including: a first modulation input part that inputs a first modulation signal to the voltage controlled oscillator based on inputted modulation data for modulating; and a second modulation input part that inputs a second modulation signal to a position different from the voltage controlled oscillator in the PLL part based on the modulation data, wherein the voltage controlled oscillator includes a first control terminal to which the first modulation signal is inputted and a second control terminal to which a signal based on the second modulation signal is inputted; and wherein the first modulation input part has a modulation sensitivity calculation unit that calculates a first modulation sensitivity in the first control terminal and a modulation factor adjustment unit that adjusts a modulation factor of the modulation data based on the calculated first modulation sensitivity and outputs the first modulation signal.