SPURIOUS WAVE SUPPRESSION FREQUENCY UPWARD CONVERTING MODULE APPARATUS CAPABLE OF BLOCKING A SPURIOUS WAVE GENERATED IN A HIGH SPEED FREQUENCY HOPPING SYSTEM

摘要

PURPOSE: A spurious wave suppression frequency upward converting module apparatus is provided to suppress a spurious wave signal due to a Load Enable signal, data, and clock used for a DDS(Direct Digital Synthesizer) configuration.;CONSTITUTION: A carrier on/off control part(310) creates a carrier control signal which controls the on/off of a carrier signal using a DDS(Direct Digital Synthesizer) Load Enable signal and frequency setting clock among the DDS control signals inputted in a high speed hopping frequency composite part. A first switch(320) sets the on/off of an operation AMP connected to an output terminal of the high speed hopping frequency composite part according to the carrier control signal. A second switch(330) sets the on/off of a Power AMP connected to an output terminal of a frequency upward converting module apparatus according to the carrier control signal. The carrier on/off control part turns off the carrier control signal during a time interval which adds DDS data load time and PLL(Phase-Locked Loop) Lock time.;COPYRIGHT KIPO 2012