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CBTL02043ABQ differential input voltage range

Question asked by Gavin Teague on Aug 24, 2017
Latest reply on Aug 28, 2017 by Gavin Teague



I have a question about the CBTL02043ABQ differential channel mux demux.


I am not sure if this is the correct community for this device. If not, I apologize.


I would like to use this device to switch SGMII high speed serial signals (1.25Gbps). SGMII differential pairs are AC coupled with a common mode voltage of 0V.


I would just like to confirm that this device can handle signals that swing to negative voltages even though it's power rails are only +3V3 and GND. Because the SGMII common mode voltage is at 0V, the signals will swing both positive and negative relative to the 0V common mode.


I can find a maximum input voltage for the differential pins of 2.4V in the datasheet but I cannot find a minimum.


Thank you.