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SN74AUP1T34: How many bandwidth that SN74AUP1T34 can support?

Jason Chien42
Expert 1180 points
Part Number: SN74AUP1T34
Other Parts Discussed in Thread: DS90LV011A, DS90LV012A, SN74AUC1G125

Dear Sir:

              We have a request for 3.3V in and 1.8V output LVDS line driver. We would like survey SN74AUP1T34  for 3.3V to 1.8V level shift but we can't find  information of bandwidth in SN74AUP1T34 datasheet. Does SN74AUP1T34 can support bandwidth up to 100MHz for single-end output LVDS  line driver (DS90LV012ATMF)?

Best Regard

Jason

  • 0
    Guru 299000 points

    The DS90LV012A is a receiver. And why don't use simply use a driver like the DS90LV011A at 3.3 V?

    Anyway, the application report How to Select Little Logic (SCYA049) has this overview; at VCC = 1.8 V, you'd better use the SN74AUC1G125:

  • 0 in reply to Clemens Ladisch
    Expert 1180 points

    Dear Sir:

                   Thanks for your reply. This request just need level shift for 100MHz clock. Can we used SN74AUC1G125 for level shift of 3V to 1.8V as below picture?  Do you have any suggest for pull-up resistance?

    Best Regard

    Jason

  • 0 in reply to Jason Chien42
    Guru 299000 points
    The CBT device is a bus switch, but the AUC device has a push/pull output and does not need a pull-up resistor.

    I suggested the '125 because there is no '34 in the AUC family. You can simply connect the OE input to ground.