| 摘要 |
<p>The invention relates to a method of controlling a frequency synthesizer and to a frequency synthesizer having a controllable output signal frequency and comprising a direct digital synthesizer (100) whose output signal is coupled to the input of a phase-locked loop (102). To reduce the settling time of the synthesizer, the direct digital synthesizer (100) comprises means (204) for controlling the frequency of the direct digital synthesizer from a first frequency to a second frequency in accordance with predetermined frequency steps.</p> |
