Specifications

PCIe/104 and PCI/104-Express Specification Revision 3.0 February 17, 2015 Page 24
2.8.2 SATA
Figure 2-7 below shows the positioning of the DC blocking capacitor and PCIe/104 connector in relation to the Host and
Device. The DC blocking capacitor is placed on the transmit and receive signals. The actual position is not critical;
however the position must be closely matched between the signals of a differential pair. Note that a SATA device
typically has internal capacitors, if so capacitors on the PCB are not required.
Figure 2-7 SATA Capacitor Placement
Table 2-11 below lists the general guide lines for SATA routing.
Table 2-11 SATA Routing Specification
Interface
Differential
Impedance
(Ohm)
Matching
in a pair
mil (mm)
Matching pair
to pair
mil (mm)
SATA 100 ±15% N/A N/A