Delay-Locked Loop

What Does Delay-Locked Loop Mean?

A delay-locked loop (DLL) is a digital circuit that provides high-bandwidth data transmission rates between devices. DLL transmissions have no propagation delay, low clock skew between output clock signals and advanced clock domain control. DLL is similar to a phase-locked loop except that it does not include an internal voltage-controlled oscillator.

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Techopedia Explains Delay-Locked Loop

A delay locked loop is a circuit that’s fed by a reference clock. A DLL tries to determine the period of that reference clock by adjusting a feedback look via the delay in a variable delay buffer. When the delayed clock signal matches the incoming clock signal, the loop is considered locked.

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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…