APPARATUS FOR REDUCING SIMULTANEOUS SWITCHING NOISE

The invention provides an electronic device for reducing simultaneous switching noise (SSN). The electronic device includes: a driver, driving an external device according to an input signal, and including: an input end, receiving the input signal; a positive output end, coupled to an external capac...

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Bibliographic Details
Main Authors CHEN SHIH-LUN, HO MING-JING
Format Patent
LanguageEnglish
Published 11.04.2013
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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Summary:The invention provides an electronic device for reducing simultaneous switching noise (SSN). The electronic device includes: a driver, driving an external device according to an input signal, and including: an input end, receiving the input signal; a positive output end, coupled to an external capacitor of the external device; and a negative output end, coupled to a variable capacitor; and a loading calibration circuit, generating an adjusting signal to adjust a first capacitance of the variable capacitor so as to make the first capacitance approximately equal to a second capacitance of the external capacitor.
Bibliography:Application Number: US201213477703