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DS90UB953-Q1: Question for Ref POC design

Harry Shin1
Expert 6740 points
Part Number: DS90UB953-Q1

Hi team

My customer will use reference 4G POC design as datasheet.

Their POC voltage is 5V with avg 250mA~300mA and expected peak will be less than 500mA.

So customer question if REF POC design is ok with those condition.

could you pls kindly help me support this question??

Thanks 

  • 0
    TI__Guru** 107450 points

    Hello Harry,

    I do not know the length of the used cable, but 5V PoC voltage is a bit low. We recommend to increase this to 8V or higher. If you increase the PoC Voltage, this will reduce the pulse amplitude and give you enough margin for transmission line losses.

    Please refer to this AppNote for more details.