METHOD FOR CONTROLLING SLEW RATE OF TRANSITION EDGE OF DIGITAL SIGNAL IN NODE OF INTEGRATED CIRCUIT

METHOD FOR CONTROLLING SLEW RATE OF TRANSITION EDGE OF DIGITAL SIGNAL IN NODE OF INTEGRATED CIRCUIT

PROBLEM TO BE SOLVED: To reduce a slew rate of a transition edge of a digital signal in a node of an integrated circuit. SOLUTION: Controlling a current flowing to a set of pre-driver FETs for driving an output stage FET can change the slew rate of a signal at an output pad. In a preferable executio...

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Bibliographische Detailangaben
1. Verfasser: HUMPHREY GUY HARLAN
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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Zusammenfassung:PROBLEM TO BE SOLVED: To reduce a slew rate of a transition edge of a digital signal in a node of an integrated circuit. SOLUTION: Controlling a current flowing to a set of pre-driver FETs for driving an output stage FET can change the slew rate of a signal at an output pad. In a preferable execution form, it is realized by using a programmable resistor pre-driver circuit to drive an output stage of an output driver. The gradient of a pre-driver signal to drive the output stage FET can be controlled by changing the source resistance of the pre-driver FET.