Compaq SMA200 user manual Sdvo, Supported devices

DIGITAL-LOGIC AG SMA200 Manual V1.0

5.4.2.SDVO

					On Module	Ext. Ter-	Max.		Matched
Signal	BUS	Type	Description		Termination	mination	Length	Ohm	Length
						Needed	in mm		in mm
SDVO_CTRLCLK	SDVO	￿	DDC signal		PU 4.7k to			55
					3.3V
SDVO_CTRLDAT	SDVO	￿	DDC signal		PU 4.7K to			55
					3.3V
SDVO_CLK +/-	SDVO	Dif	Needs a series 100nF	-		-	100	100	0.5
		Out	capacitor to connect to an
			SDVO converter chip
SDVO_INIT +/-	SDVO	Dif	Needs a series 100nF	-		-	100	100	0.5
		In	capacitor to connect to an
			SDVO converter chip
SDVO_STALL +/-	SDVO	Dif	Needs a series 100nF	-		-	100	100	0.5
		In	capacitor to connect to an
			SDVO converter chip
SDVO_TVCLKIN +/-	SDVO	Dif	Needs a series 100nF	-		-	100	100	0.5
		In	capacitor to connect to an
			SDVO converter chip
SDVO_Red +/-	SDVO	Dif	Needs a series 100nF	-		-	100	100	0.5
		Out	capacitor to connect to an
			SDVO converter chip
SDVO_Green +/-	SDVO	Dif	Needs a series 100nF	-		-	100	100	0.5
		Out	capacitor to connect to an
			SDVO converter chip
SDVO_Blue +/-	SDVO	Dif	Needs a series 100nF	-		-	100	100	0.5
		Out	capacitor to connect to an
			SDVO converter chip

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: Pair to Pair matching: BUS to BUS spacing:

35mil = 0.9mm better than 25mm 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.

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