12.1 Layout Guidelines

Figure 46 illustrates an example of a PCB layout with the MUX36S08IPW, and Figure 47 illustrates an example of a PCB layout with MUX36D04IPW.

Some key considerations are:

1. Decouple the VDD and VSS pins with a 0.1-µF capacitor, placed as close to the pin as possible. Make sure that the capacitor voltage rating is sufficient for the V_DD and V_SS supplies.
2. Keep the input lines as short as possible. In case of the differential signal, make sure the A inputs and B inputs are as symmetric as possible.
3. Use a solid ground plane to help distribute heat and reduce electromagnetic interference (EMI) noise pickup.
4. Do not run sensitive analog traces in parallel with digital traces. Avoid crossing digital and analog traces if possible, and only make perpendicular crossings when necessary.