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            ______    _  _     ______    _____   
    ___    /_   _//  | \| ||  /_   _//  /  ___|| 
   /   ||   -| ||-   |  ' ||   -| ||-  | // __   
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   \__ ||  /_____//  |_|\_||  /_____//  \____//  
    -|_||  `-----`   `-` -`   `-----`    `---`   
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Text this: A low-jitter and low-reference-spur 320 GHz signal source with an 80 GHz integer-N phase-locked loop using a quadrature XOR technique