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CN0239  indicate 0 to 4GHz.   Does the Upconv mode only go to 800 MHz out ??

Question asked by JimPennell on Apr 21, 2016
Latest reply on Apr 22, 2016 by bsam

The CN0239 document states that the circuit works as either a UP or a DOWN converter.    In fact, EVERY frequency indication, including the graphs all indicate performance up to 4 GHz.    However, the output transformer, TC4-1W+, is rated for 3 to 800 MHz.

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Can you verify if the Upconvert mode only works from 3 to 800 MHz ??

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If I am correct, please add notes in the Diagram to show the IF output frequency limit, since that would apply to both the UP and the DOWN converter modes of operation.

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Regards, Jim Pennell

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