Intel
®
EP80579 Integrated Processor Product Line May 2010
Order Number: 320068-005US 153
Serial ATA (SATA) Interface—Intel
®
EP80579 Integrated Processor Product Line
so that serpentining is not necessary would be the approach to meeting the minimum
requirement and not serpentining.
• Keep SATA traces 20 mils from any vias on the motherboard whenever possible.
• In certain systems, such as a closed-box small form factor system, where a short,
very low loss cable is to be exclusively used, it may be desirable to use longer trace
lengths to optimize SATA signal quality at the device receiver. See the Rx connector
specification for more information. Careful simulation and/or studies on prototypes
of signal quality are required to balance this trade off effectively.
Figure 98. SATA Layout and Routing Example
Notes:
1. Some manufacturing processes have difficulties with the fine-pitched SATA thru-hole connector. In
some cases, solder bridging can occur between the connector pins. Solder wicking pads, as shown in
Figure 98, can be used to minimize this effect by wicking solder away from the pins.
2. The AC Caps are required on the SATA interface.
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