LSF0102 The value of VIH VIL VOH VOL

This device does not actually pass through digital signals; section 8.3 of the datasheet says:

When the An or Bn port is LOW, the switch is in the ON-state and a low resistance connection exists between the An and Bn ports.

This is essentially an analog switch.

In the high state, no current flows (except some leakage current).

To get a low signal on an output, whatever device is connected to the corresponding input must have enough drive strength to pull the entire signal line low, which means it must be able to sink the current through any pullup resistors and the switch resistance:

So to determine the voltage at the output, you need to know V_OL of the driver, and the values of all the resistors.

Hi Clemens,
Thank you for your reply. But I can not still understand.

Is there ant TI Employee to reply me?

Hello Mickey,

I have notified the appropriate engineer, they should respond to your inquiry shortly.

Hi Mickey ,

LSF is a passive translator , it does not have a Vih Vil Voh Vol specified on it since it doesn't have a drive of its own.

As explained by Clemens ,the driver must be able to sink all the current through the pullup resistors and still be able to maintain the low level.
for eg: Driver is rated at 0.4V at 16mA , then the output low level of LSF will be 0.4V(max) when 16mA of current is being sunk into the driver. Any more current will increase the Vol beyond 0.4V .

Hi Shrey,
Thanks for your reply. Can you suggest some level translators other than "LSF" series for MDIO&MDC level translation?