Samsung RT55EANS Especificações descarregar pdf (Página 97)

Ref# 420826 Intel

Atom™ processor CE4100 97

Platform Design Guide

Intel Confidential

8.2.1.2 USBRBIAS/USBRBIASN Connection

Intel recommends that designers short the USBRBIASP and the USBRBIASN pins at the

package, and then rout the shorted pins to one end of a 22.6 Ω ±1% resistor to ground.

Place the resistor within 500 mils of the processor. Avoid routing next to clock pins.

Figure 8-7. USBRBIAS/USBRBIASN Connection

Table 8-5. USBRBIASP/ USBRBIASN Routing Guidelines

Signal

Name

Impedance

Width Layer Length

Length

Matching

within

Diff Pair

Figure Notes

USBRBIASP

USBRBIASN

55 Ω±10% 4 mils Micro strip 0 – 0.5” N/A Figure 8-7 1

Notes:

1. W represents width of signal; S represents spacing to any other signal.

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