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Transmit digital to analog converter (DAC) spur attenuation

  • US 9,379,727 B1
  • Filed: 02/23/2015
  • Issued: 06/28/2016
  • Est. Priority Date: 02/23/2015
  • Status: Active Grant
First Claim
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1. A method of attenuating spurs in a digital to analog converter (DAC), comprising:

  • injecting a reference voltage into an amplifier;

    measuring an output of a ground low drop-out regulator;

    comparing an output of the ground low drop-out regulator with the reference voltage; and

    adjusting an output of the amplifier based on the comparison.

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