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DIGITAL-LOGIC AG SMA200 Manual V1.0
36
5.4.12. GLAN
Signal BUS Type
Description
On Module
Termination
Ext. Ter-
mination
Needed
Max.
Length
in mm
Ohm
Matched
Length in
mm
GLAN_TX +/- GLAN Dif GLAN TX pair for 1GE - 100nF 250 95 0.5
GLAN_RX +/- GLAN Dif GLAN RX pair for 1GE - 100nF 250 95 0.5
GLAN-CLK +/-
GLAN Dif GLAN reference clock
pair
- 33 Ohm 250 50 -
LCI_TXD[2..0] LCI 3.3V
Out
3x TX signal for
10/100MB
- - 250 50 -
LCI_RXD[2..0]
LCI 3.3V
In
3x RX signal for
10/100MB
- - 250 50 -
LCI_RST LCI 3.3V
Out
LAN reset/synch - - 250 50 -
If the signals are not used:
Unused GLAN /LCI 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
EMV/EMI filters:
Are not needed.