8413S12B datasheet(21/34 Pages) RENESAS

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Revision E, August 18, 2016

8413S12B Datasheet.

Recommended Termination

Figure 4A is the recommended source termination for applications

where the driver and receiver will be on a separate PCBs. This

termination is the standard for PCI Express™ and HCSL output

types. All traces should be 50

 impedance single-ended or 100

differential.

Figure 4A. Recommended Source Termination (where the driver and receiver will be on separate PCBs)

Figure 4B is the recommended termination for applications where a

point-to-point connection can be used. A point-to-point connection

contains both the driver and the receiver on the same PCB. With a

matched termination at the receiver, transmission-line reflections will

be minimized. In addition, a series resistor (Rs) at the driver offers

flexibility and can help dampen unwanted reflections. The optional

resistor can range from 0

 to 33. All traces should be 50

impedance single-ended or 100

 differential.

Figure 4B. Recommended Termination (where a point-to-point connection can be used)

0-0.2"

PCI Expres s

1-14"

Driver

0.5" Max

49.9 +/- 5%

22 to 33 +/-5%

0.5 - 3.5"

Connector

PCI Expres s

Add-in Card

PCI Expres s

0-0.2"

PCI Expres s

0-0.2"

0-18"

Driver

0.5" Max

49.9 +/- 5%

0 to 33

8413S12B Folha de dados(PDF) 21 Page - Renesas Technology Corp