Sata Interface (Option) - DIGITAL-LOGIC SmartCore Express SMA200 Technical User's Manual

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5.4.11. SATA Interface (Option)

Signal BUS
SATA_Tx[0..3] SATA
SATA_Rx[0..3] SATA
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.
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.
Type Description
Dif SATA transmitter pair
Dif SATA receiver pair
35mil = 0.9mm
On Module Ext. Ter-
Termination mination
Needed
Series 10nF
Series 10nF
35
SMA200 Manual V1.0
Max. Matched
Length Ohm Length
in mm in mm
100 100 -
100 100 -