Signal generating circuit and method thereof

A signal generating method, comprising:

• receiving a target signal and utilizing a first delay amount to delay an input signal to generate a first delayed input signal via a first delay path based on the target signal;
• receiving the target signal and utilizing a second delay amount to delay the input signal to generate a second delayed input signal via a second delay path, wherein the first delay amount is smaller than the second delay amount based on the target signal;
• gating at least part of the target signal to generate a first output signal according to the first delayed input signal;
• gating at least part of the target signal to generate a second output signal according to the second delayed input signal;
• and
• outputting one of the first output signal and the second output signal according to a phase difference between the target signal and a reference signal.

A signal generating method, comprising:

• utilizing a first delay amount to delay an input signal to generate a first delayed input signal;
• utilizing a second delay amount to delay the input signal to generate a second delayed input signal, wherein the first delay amount is smaller than the second delay amount;
• selecting one of the first delayed input signal and the second delayed input signal as a output selecting signal according to a phase difference between a reference signal and a target signal;
• and
• gating at least part of the target signal as an output signal according the output selecting signal.