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DEVICES AND METHODS FOR DRIVING A SIGNAL OFF AN INTEGRATED CIRCUIT

  • US 20090224802A1
  • Filed: 03/06/2008
  • Published: 09/10/2009
  • Est. Priority Date: 03/06/2008
  • Status: Active Grant
First Claim
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1. An electronic device including a package, the electronic device comprising:

  • at least one externally-accessible terminal configured to couple to a channel; and

    an integrated circuit chip, the integrated circuit chip including;

    driver circuitry operable to receive an on-chip signal and drive the on-chip signal off of the chip, the driver circuitry having first and second input terminals and first and second output terminals, one of the first and second input terminals coupled to receive the on-chip signal and the other of the first and second input terminals coupled to receive the complement of the on-chip signal, the driver circuitry operable to produce an output signal at the first output terminal and a complement of the output signal at the second output terminal;

    a first electrical connector coupled between one of the first or second output terminals and the at least one externally-accessible terminal;

    a termination circuit, the termination having an input terminal adjacent to the externally-accessible terminal, the termination operable to terminate a received signal and having an impedance value related to capacitance of the channel; and

    a second electrical connector, not coupled to any of the externally-accessible terminals, coupled between the other of the first or second output terminals and the input terminal of the termination circuit.

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