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SN65HVD62: SN65HVD62 Input threshold of COAX RECEIVER

Yang Wu
Intellectual 2830 points
Part Number: SN65HVD62

Hi Team,

My customer has some questions about SN65HVD62. I open this case for him to ask some help from you. thanks a lot.

1. In datasheet page6, V_IT is -15dBm, does it conforms to AISG 3.0? 

2. In datasheet page6, how do you tranform Vpp to dBm without impedance info? I use equation: dBm = 10*lg(VPP^2/(8*X_impedance) * 1000)

thanks a lot.

Best regards,

Yang

  • 0
    TI__Guru 62910 points

    Hello Yang,

    Yes, the demodulator input sensitivity is specified in line with AISG 3.0 requirements.  (That is, the on state should not be detected with OOK signal level < -18 dBm and the off state should not be detected with OOK signal level > -12 dBm.)

    You can see the details behind the conversion between dBm and V for this device in Section 10.1.4 of the datasheet.

    Please let us know if you have any further questions.

    Regards,
    Max