Figure 9-1 shows an example of a PCB layout with the TMUX6136.
Some key considerations are as follows:
- Decouple the VDD and VSS pins with a 0.1µF capacitor,
placed as close to the pin as possible. Make sure that the capacitor voltage
rating is sufficient for the VDD and VSS supplies.
- Keep the input lines as short as possible.
- Use a solid ground plane to help distribute heat and reduce electromagnetic
interference (EMI) noise pickup.
- 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.