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TRF3722: Queries regarding TRF3722

Jash Kothari
Prodigy 380 points
Part Number: TRF3722
Other Parts Discussed in Thread: DAC38J84, DAC3484

Tool/software: 

Hi Team,

My customer has the following queries regarding TRF3722. Can you please help? 
1. Carrier feedthrough and sideband suppression -how to improve?
2. VCC_Tk - it is mentioned can be operated on 3.3V? what is the penalty 
if we operate on lower voltage. Which all parts of TRF3772 does it 
power?

Thanks,
Jash 
S.FAE
  • 0
    TI__Guru 70204 points

    Hi Jash,

    Jash Kothari said:
    1. Carrier feedthrough and sideband suppression -how to improve?

    1. You will need an external DAC device that can support carrier suppression and sideband suppression. Please check out DAC devices such as the DAC3484 family (LVDS input based) or the DAC38J84 family (JESD204B based)

    Jash Kothari said:
    2. VCC_Tk - it is mentioned can be operated on 3.3V? what is the penalty

    You can observe impact on OIP3 and P1dB performance. Please see below for guidance on variation of the OP1dB and OIP3 vs. VCC_TK (4.75V, 5V, and 5.25V)