Why this LVDS transceiver doesn't specify the differential input polarity?
The polarity is specified in a roundabout way. Note that A has no input &quot;bubble&quot; but B has one. That tells you that for differential inputs, A is the non inverting input and B is inverting. This can also be confirmed in figure 22. by looking at the input and output waveforms. Figure 22 is a timing diagram, but it shows that Vid is Va-Vb and it shows that the output will be positive going for positive Vid.