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TI Home » TI E2E Community » Support Forums » RF & Digital Radio » High Performance RF Modulators, PLL and VCO products » High Performance RF Modulators, PLL and VCO products Forum » TRF3705 pin strapping
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TRF3705 pin strapping

TRF3705 pin strapping

This question is answered
George Biner (Arrow)
Posted by George Biner (Arrow)
on Jul 11 2012 12:54 PM
Intellectual675 points

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

TRF3705
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  • Habeeb Ur Rahman Mohammed
    Posted by Habeeb Ur Rahman Mohammed
    on Jul 11 2012 14:21 PM
    Verified Answer
    Verified by Habeeb Ur Rahman Mohammed
    Prodigy550 points

    Hello George,

    Yes, you can leave PD pin open it is internally pulled down and GC pin can be pull to 3.3V.

    Regards,

    Habeeb.

     

     

    -----

    Habeeb Ur Rahman Mohammed

    HPA-HSP / Texas Instruments Inc.


     

     

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