13.1 Layout Guidelines
Each system design and PCB layout is unique. The layout should be carefully reviewed in the context of a specific PCB design. However, the following guidelines can optimize TLV320AIC3254 performance:
- Connect the thermal pad to ground.
- The decoupling capacitors for the power supplies should be placed close to the device terminals. Figure 21 shows the recommended decoupling capacitors for the TLV320AIC3254.
- The TLV320AIC3254 internal voltage references must be filtered using external capacitors. Place the filter capacitors on REF near the device terminals for optimal performance.
- For analog differential audio signals, the signals should be routed differentially on the PCB for better noise immunity. Avoid crossing of digital and analog signals to avoid undesirable crosstalk.