82563EB datasheet(32/52 Pages) INTEL

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82563EB/82564EB Gigabit Platform LAN Connect Networking Silicon

The effective resistance of the pass resistors should be approximately 0.5

Ω and have a combined

power dissipation rating of 0.5 Watts for the 82563EB. Figure 5 shows the recommended

implementation.

Figure 5. 82563EB 1.9V and 1.2V internal LVR schematic

Note:

No resistors are required for the 82564EB as shown in Figure 6 due to the reduction in current

demand. See Figure 4.9 for more details regarding power consumption.

Figure 6. 82564EB 1.9V and 1.2V internal LVR schematic

4.5

Link (MDI) Interface

The Media Dependent Interface pins (MDIA_PLUS[3:0], MDIA_MINUS[3:0],

MDIB_PLUS[3:0], MDIB_MINUS[3:0]) are analog pins conforming to the IEEE 802.3ab (802.3

Clause 40) requirements.

CTRL_18

Vcc3_3

Vcc1_9

1.0 ohm, 5%, 1/4W

Note: PNP needs 0.5 inch by

0.5 inch thermal relief pad

CTRL_12

Vcc3_3

Vcc1_2

1.0 ohm, 5%, 1/4W

Note: PNP needs 0.5 inch by

0.5 inch thermal relief pad

CTRL_18

Vcc3_3

Note: PNP needs 0.5 inch by

0.5 inch thermal relief pad

Vcc1_9

CTRL_12

Vcc3_3

Note: PNP needs 0.5 inch by

0.5 inch thermal relief pad

Vcc1_2

Table 26. Link (MDI) Interface Electrical Specification

Symbol

Parameter

Pins

Condition

Min

Typ

Max

Unit

VODIFF

Absolute peak differ-

ential output voltage

MDI*[1:0]

MDI*[3:0]

10Base-T no cable

10Base-T cable

100Base-TX mode

1000Base-Ta

2.2

585b

0.950

0.67

2.5

0.75

2.8

1.050

0.82

Overshoot

MDI[1:0]

100Base-TX mode

(V)

Amplitude Symmetry

(positive / negative)

MDI[1:0]

100Base-TX mode

0.98x

1.02x

V+ /

V-

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