Delay control device and tunable delay device
AssigneeWinbond Electronics Corp.
InventorYen-Yu CHOU
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Abstract
A delay control device for controlling a delay circuit includes an oscillator, a counter, and an output control circuit. The oscillator generates an internal clock signal according to an external clock signal. The counter generates an accumulative signal according to the internal clock signal. The counter is selectively reset by the external clock signal. The output control circuit generates a delay indication signal according to the accumulative signal. The delay time of the delay circuit is adjusted according to the delay indication signal.
Claims20
A delay control device for controlling a delay circuit, comprising:
- an oscillator, generating an internal clock signal according an external clock signal;
- a counter, generating an accumulative signal according to the internal clock signal, wherein the counter is selectively reset by the external clock signal;
- and
- an output control circuit, generating a delay indication signal according to the accumulative signal, wherein a delay time of the delay circuit is adjusted according to the delay indication signal.
A tunable delay device, comprising:
- an oscillator, generating an internal clock signal according an external clock signal;
- a counter, generating an accumulative signal according to the internal clock signal, wherein the counter is selectively reset by the external clock signal;
- an output control circuit, generating a delay indication signal according to the accumulative signal;
- and
- a delay circuit, wherein a delay time of the delay circuit is adjusted according to the delay indication signal.
Dependencies are inferred from the claim text.