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DUAL CONVERSION TRANSMITTER WITH SINGLE LOCAL OSCILLATOR

  • US 20100117693A1
  • Filed: 11/06/2009
  • Published: 05/13/2010
  • Est. Priority Date: 11/07/2008
  • Status: Active Grant
First Claim
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1. An electronic device comprising:

  • a first mixer configured to receive a first oscillator signal;

    the first mixer configured to receive a communication signal from an input to the electronic device;

    the first mixer configured to output a converted signal based on the first oscillator signal and the communication signal;

    a filter configured to remove undesired spurious signals from the converted signal and output a filtered signal; and

    a second mixer in communication with the filter and configured to receive the filtered signal, the second mixer configured to receive a scaled version of the first oscillator signal;

    the second mixer in communication with an output of the electronic device and configured to output an output signal based on the scaled version of the first oscillator signal and the filtered signal;

    wherein the electronic device comprises one of;

    a multiple conversion transmitter, and a multiple conversion transceiver, and wherein the output signal has an output frequency that is tunable over an output frequency range by adjusting a frequency associated with the first oscillator signal over a first oscillator signal frequency range.

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