ICS1893AF datasheet(28/137 Pages) RENESAS

部件名	ICS1893AF

功能描述	3.3-V 10Base-T/100Base-TX Integrated PHYceiver

PDF	137 Pages

Scroll/Zoom	100%

制造商	RENESAS [Renesas Technology Corp]

网页	http://www.renesas.com

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28 / 137 page

ICS1893AF, Rev D 10/26/04

October, 2004

Chapter 6

Interface Overviews

ICS1893AF Data Sheet - Release

6.3.2

Twisted-Pair Receiver Interface

Figure 6-2 shows the design for the ICS1893AF twisted-pair receiver interface.

• Two 56.2

Ω 1% resistors are in series, with the center bypassed to ground with a 0.1-µF bypass

capacitor.

• No bypass capacitor is used with the receive transformer center tap.

• A 4.7-pF capacitor must be included across the ICS1893AF side of the receive transformer.

Note:

Keep leads as short as possible.

Install the resistor network as close to the ICS1893AF as possible.

Figure 6-2.

ICS1893AF Receiver Twisted Pair

TP_RXN 19

56.2

Ω 1%

0.1

µF

56.2

Ω 1%

To RJ-45

1:1

System Ground Plane

Chassis Ground Plane

Ω

0.1

µF 2 kV

4.7 pF

Separate Ground

Plane

Center

Tap

ICS1893AF

TP_RXP 18

ICS1893AF 数据表(PDF) 28 Page - Renesas Technology Corp

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