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EC

abbreviationStandard termElectronics

An edge combiner generates high-frequency clock signals by combining multiple phase-shifted clock edges.

EC (edge combiner) is a digital circuit block used to multiply clock frequencies. It takes multiple phase-shifted outputs from a delay-locked loop (DLL) or phase-locked loop (PLL) and combines their rising or falling edges into a single, higher-frequency output signal. This technique is often used in high-speed memory interfaces and radio-frequency synthesizers to generate precise, high-speed clocks without requiring an extremely fast internal oscillator.

Heard on the job

The DLL feeds four phases into the EC to generate the 2 GHz clock for the output serializer.

Also heard as

  • edge combiner

Related terms

PLL

A phase-locked loop circuit that synchronizes an output oscillator with a reference signal.

Clock

A continuous square wave signal that synchronizes the timing of digital circuits.

Clock generator

A circuit or chip that produces the primary timing signals for a digital system.

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