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Continuous time linear equalization for current-mode logic with transformer

  • US 9,537,685 B2
  • Filed: 03/18/2016
  • Issued: 01/03/2017
  • Est. Priority Date: 04/06/2015
  • Status: Active Grant
First Claim
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1. A system comprising a current mode logic device, the system comprising:

  • the current mode logic device comprising;

    a first input and a second input for receiving data;

    a first transistor comprising a first gate and a first output terminal and a first source terminal, the first gate being electrically coupled to the first input;

    a second transistor comprising a second gate and a second output terminal, the second gate being electrically coupled to the second input;

    a capacitor module coupled to the first source terminal, the capacitor module comprising a plurality of capacitors;

    a first resistor coupled to the first output terminal;

    a second resistor coupled to the second output terminal;

    a first transformer comprising a first primary winding and a first secondary winding, the first primary winding being electrically coupled to the first resistor and the first output terminal; and

    a first equalization module coupled to the first secondary winding, the first equalization module comprising a first digital-to-analog converter (DAC) unit and a first plurality of resistors, the first DAC unit being configured to selectively switching one or more of the first plurality of resistors in response to equalization signals received from an equalization logic; and

    an interface coupled to the current mode logic device.

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