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TRF3705 pin strapping

Other Parts Discussed in Thread: TRF3705

I anm forwarding a question from my customer for the TRF3705: 

>>>> I plan to use TRF3705 modulator chip for our RF transceiver.  However, I have some questions:

Pin 1 is to power the chip on and off.  If I want to keep the chip on all the time, is it OK to leave it open (NC)? 

Pin 6 is to adjust for high gain.  If I want it to have high gain all the time, is it OK to pull it up to 3.3V ?  >>>>

in the d/s there are digital input specs for the PD pin, but not for the GC pin. 

Regards, George Biner, Arrow LA