| 摘要 |
PURPOSE:To make the reference frequency of a PLL synthesizer high and to vary the frequency range in a simple and delicate way even in an MHz band. CONSTITUTION:This synthesizer is provided with less number of components and adjustment positions such that the output of a mixer 17 for which the outputs of VCOs 14, 21 of two sets of PLLs sharing the reference freqnency of a single fixed oscillator 11 are connected via a fixed frequency divider 18 is fed back to the one PLL. |
