| 摘要 |
<p>A circuit for producing a synchronized output of multiple ring oscillators is disclosed. In one embodiment, the circuit includes a first ring oscillator configured to generate a first periodic signal and a second ring oscillator configured to generate a second periodic signal. The circuit may further include a selection unit coupled to receive the first periodic signal and the second periodic signal. The selection unit is configured to convey a first clock edge into each of the first and second ring oscillators responsive to a most recently received rising edge from one of the first and second periodic signals. The selection unit is further configured to convey a second clock edge into each of the first and second ring oscillators responsive to a most recently received falling edge from one of the first and second periodic signals, wherein the first and second clock edges are opposite in direction.</p> |
