3.4.6.2 Provision for EMI Filtering

In the event that CE RED or FCC certification is required, the board can be fine-tuned using LC filtering positions on various clock lines near connectors and devices. These positions are available but not populated by default.

Mounting the components will help reduce EMI during the test.

The following filter (with components not populated) is available and placed on the following nodes:

  • GIGABIT_ETH_125CK
  • MII_TX
  • MII_RX

The following figure shows the EMI filtering.

Figure 3-29. EMI Filtering