| 摘要 |
A time-to-digital conversion apparatus reduces the pulse width of a signal to be tested by introducing the signal through a plurality of shrinking cells cascaded until the reduced pulse width cannot drive the next shrinking cell, to generate a group of digital output codes representative of a binary code. The apparatus operates with a clock signal and comprises a shrinking cell group converting the signal to be tested to a plurality of first digital output codes, and a latch cell group receiving the first digital output codes and generating a plurality of second digital output codes which can be converted to a binary code. The time-to-digital conversion apparatus could be utilized in a jitter-measuring apparatus, which converts the jitter of a signal of analog form to a group of digital codes. The digital codes represent a time width of cycle-to-cycle jitter of the signal.
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