| 摘要 |
<p>A circuit for generating jitter includes a mixer 12 which mixes a jittered signal from a jitter generator 11 with the output of a variable frequency oscillator 14 to produce a broadband jittered output. A preferred form of the circuit uses a double frequency translation technique in which the output F1 from a reference oscillator is applied to a jitter generator and to a first frequency translation device to translate a variable input frequency F2 to an intermediate frequency (F1 and F2). The jittered signal and the intermediate frequency signal are then applied to a second frequency translation device to produce a jittered output at F2.</p> |
