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SN75LVCP601: Asking about differential TX RX voltage level

Roy Hsu
Intellectual 2800 points
Part Number: SN75LVCP601

Hi Expert,

I have 3 questions about SN75LVCP601RTJR, if the VCC of SN75LVCP601RTJR is 3.3V,

1. May I use 1.8V for differential TX RX voltage level?

2. May I use 3.3V for differential TX RX voltage level?

3. Is it have any differential TX RX amplitude limit?

Thanks!

Best Regards,

Roy

  • 0
    TI__Guru* 91440 points

    Hi Roy,

    Reading the data sheet here are some comments:

    1a). Differential input voltage swing: Maximum 1600mVpp

    1b). Maximum differential output voltage swing: Maximum 550mVpp

    2). Let's take TX voltage swing as an example. Common model voltage is 1.8V. Given 550mVpp, this means each single ended P or N would have 275mVpp swing. That is we have 1.8V DC and then there +275mV/2 on top and -275mV/2 on bottom of 1.8V DC. Hopefully this sheds light into how this works.

    3). Yes there is a max - please note 1a and 1b.

    Regards,Nasser