Compaq SmartCore Express SMA200 - Manual (Page 35)

DIGITAL-LOGIC AG SMA200 Manual V1.0
35
5.4.11. SATA Interface (Option)
Signal BUS Type Description
On Module
Termination Ext. Ter-
mination
Needed Max.
Length
in mm
Ohm
Matched
Length
in mm
SATA_Tx[0..3] SATA Dif SATA transmitter pair Series 10nF 100 100 -
SATA_Rx[0..3] SATA Dif SATA receiver pair Series 10nF 100 100 -
If the signals are not used:
Unused SATA interfaces may be open.
Remarks:
The 10nF capacitors 0402 need to be placed directly at the SATA connector.
Maximum via count is 2 per signal.
BUS to BUS spacing is min. 20mil = 0.5mm
Pair to Pair spacing is min.
35mil = 0.9mm
The SATA_LED# output show the SATA (all ports) activity. The LED must be connected to +3.3V with
a series resistor of 330 Ohm to the “SATA_LED#” signal.
EMV/EMI filters:
Are not needed.