Hello expert,
My customer is asking how long can SN74AUC125 on trace length. Also the loss on SN74AUC125. Could you provide the information for us? Thanks a lot!
Best regards,
Ann Lien
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Hello expert,
My customer is asking how long can SN74AUC125 on trace length. Also the loss on SN74AUC125. Could you provide the information for us? Thanks a lot!
Best regards,
Ann Lien
Hi Ann,
It sounds like your customer needs to run some signal integrity simulations -- we offer an IBIS model for the SN74AUC125 in the product folder here: SN74AUC125 data sheet, product information and support | TI.com
how long can SN74AUC125 on trace length.
This will depend significantly on the trace and load characteristics. Generally speaking, they should keep the load capacitance below 30pF to meet the datasheet specifications:
A series resistor can be added at the output of the device to allow for larger capacitive loading (ie long transmission lines). For this device (which has very fast edges at the output) beyond about 10cm, transmission line effects can become more pronounced. We have an FAQ that discusses these effects in detail here: [FAQ] What happens when I connect a logic device's output to a 50 ohm transmission line? - Logic forum - Logic - TI E2E support forums
Also the loss on SN74AUC125.
I'm not really sure what they mean here. The SN74AUC125 is a logic buffer, not a linear RF component, so there's no insertion loss associated with it.
The best solution would be to have them simulate using the IBIS model to see how the device will operate in their planned system.
Hello Emrys,
Thanks for reply! I will let customer check on IBIS model, thanks!
Best regards,
Ann Lien