Keeping one internal switch high in HMC-C019 while driving the other internal switch

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Accepted Answer

Question Can we activate one of the internal switches permanently and only switch the 
 second internal switch in HMC-C019? The data sheet does not provide information 
 as to how this will affect the performance of the device? Answer In HMC-C019, based on the device schematic, there are two internal switches: 
 The RF is switched from RF1 to RF2. The two internal switches are controlled by 
 Vctl1 and Vctl2. The datasheet for HMC-C019 measures 
 the performance with both the control pins tied together. No data has been 
 taken with one control pin tied high. The device isolation will suffer in the 
 case of holding one internal switch high and switching only the second one. 
 Hence, this is not recommended.

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HMC-C019: FAQ