DIGITAL-LOGIC SmartCore Express SMA200, Техническое руководство пользователя

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DIGITAL-LOGIC AG
SMA200 Manual V1.0
26
5.4.2. SDVO
Signal BUS Type Description
On Module
Termination Ext. Ter-
mination
Needed Max.
Length
in mm
Ohm
Matched
Length
in mm
SDVO_CTRLCLK SDVO DDC signal PU 4.7k to
3.3V 55
SDVO_CTRLDAT SDVO DDC signal PU 4.7K to
3.3V 55
SD/- SDVO Dif
Out
Needs a series 100nF
capacitor to connect to an
SDVO converter chip - - 100 100 0.5
SDV/- SDVO Dif
In
Needs a series 100nF
capacitor to connect to an
SDVO converter chip - - 100 100 0.5
SDVO/- SDVO Dif
In
Needs a series 100nF
capacitor to connect to an
SDVO converter chip - - 100 100 0.5
SDVO_T/- SDVO Dif
In
Needs a series 100nF
capacitor to connect to an
SDVO converter chip - - 100 100 0.5
SD/- SDVO Dif
Out
Needs a series 100nF
capacitor to connect to an
SDVO converter chip - - 100 100 0.5
SDVO/- SDVO Dif
Out
Needs a series 100nF
capacitor to connect to an
SDVO converter chip - - 100 100 0.5
SDV/- SDVO Dif
Out
Needs a series 100nF
capacitor to connect to an
SDVO converter chip - - 100 100 0.5
If the signals are not used:
All these SDVO signals may be left open.
Remarks:
For the DDC signals, a voltage translator to 3.3V or 5V is needed.
Pair to Pair spacing: 35mil = 0.9mm
Pair to Pair matching: better than 25mm
BUS to BUS spacing: 20mil = 0.5mm
The AC coupling capacitors (100nF / 0402) must be placed near the device for the Tx signals only.
The maximum number of vias per signal is less than 4.
Supported devices:
SiliConImage SIL1362 / SIL1364 (DVI)
Chrontel CH7021 (SDTV / HDTV / CRT)
EMV/EMI filters:
Chokes are needed.