| 摘要 |
PROBLEM TO BE SOLVED: To make precisely measurable the jitter transfer characteristic of circuits to be measured, whose input/output frequencies are different from each other. SOLUTION: In this apparatus 20 measuring for a jitter transfer characteristic, a frequency conversion part 30 is installed between an input terminal 20b and a jitter detection part 35. In a calibrating operation, a signal at a frequency F1 which is outputted from a jitter generation part 21 and which is inputted via an output terminal 20a and the input terminal 20b is converted into a signal at a frequency F4 so as to be inputted to the jitter detection part 35. In a measuring operation, a signal, at a frequency F2, which is outputted from a circuit to be measured and which is inputted to the input terminal 20b is converted into a signal at the frequency F4 which is identical to that in the calibrating operation so as to be inputted to the jitter detection part 35.
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