Cirrus Logic AN Integrating CobraNet into Audio Products - Manual (Page 7)

Integrating CobraNet Circuitry into PCBs P RELIMINARY
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CS18101 (CM-2) AppNote1 - rev 1.1 Jan, 2004
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on the same side as the ICs, individual caps work better since it allows for a more even
distribution around the ICs.
The CM-2 module was designed using a 6-layer PCB and 6-mil traces. This is due to the
amount of circuitry packed into the small PCB. If the PCB were larger, or the second
Ethernet connector removed, a 4-layer PCB would have been adequate. However, we do
not recommend using a 2-layer PCB.