Variable delay element for use in delay tuning of integrated circuits

A method and apparatus for delay tuning an integrated circuit which includes a delay element that includes a plurality of delay stages interconnected in a cascaded relationship, each stage imposing an incremental delay upon the input signal when enabled, the delay element receives a selection signal...

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Hauptverfasser: Kuppuswamy, Ravishankar, Taylor, Gregory
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method and apparatus for delay tuning an integrated circuit which includes a delay element that includes a plurality of delay stages interconnected in a cascaded relationship, each stage imposing an incremental delay upon the input signal when enabled, the delay element receives a selection signal that determines how many of the delay stages are enabled. By varying the select signal, the delay element imposes, a variable delay upon the input signal for testing and evaluation.