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Slew control using a switched capacitor circuit

  • US 9,621,138 B1
  • Filed: 11/05/2015
  • Issued: 04/11/2017
  • Est. Priority Date: 11/05/2015
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a swing control circuit configured and arranged to be powered by an input supply voltage, to receive an input data signal and, in response, to generate a first internal signal having a swing level corresponding to the input supply voltage;

    a slew control circuit, including a switched capacitor circuit, configured and arranged to receive the first internal signal and, in response, to generate a second internal signal using the switched capacitor circuit to set a slew rate for the second internal signal; and

    a driver circuit configured and arranged to receive the second internal signal and, in response, to generate an output signal that is based upon the swing level and the slew rate of the second internal signal.

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