82559ER データシートの表示（PDF） - Intel

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82559ER

Fast ethernet PCI controller

Intel 

Networking Silicon — GD82559ER

VIDR100

VICM100

VOD100

ICCT100

Table 19. 100BASE-TX Voltage/Current Characteristics

Input Differential

Reject Peak Voltage

±100 mV

Input Common Mode

Voltage

Output Differential

Peak Voltage

VCC/2

V

0.95 1.00 1.05

V

Line Driver Supply

Peak Current

RBIAS100 = 619 Ω

20

mA

1

NOTES: Current is measured on all VCC pins (VCC = 3.3 V).

1. Transmitter peak current is attained by dividing the measured maximum differential output peak voltage by

the load resistance value.

Rbias100

585 0hm

619 Ohm

650 Ohm

19mA

20 mA

21mA Icct100

Figure 24. RBIAS100 Resistance Versus Transmitter Current

NOTES: Current is measured on all VCC pins (VCC = 3.3 V).

Table 20. 10BASE-T Voltage/Current Characteristics

Symbol

Parameter

Condition

RID10

VIDA10

VIDR10

VICM10

VOD10

ICCT10

Input Differential

Impedance

10 MHz

Input Differential

Accept Peak Voltage

5 MHz ≤ f ≤ 10 MHz

Input Differential

Reject Peak Voltage

5 MHz ≤ f ≤ 10 MHz

Input Common Mode

Voltage

Output Differential

Peak Voltage

RL = 100 Ω

Line Driver Supply

Peak Current

RBIAS10 = 549 Ω

Min Typical Max

10

Units

KΩ

±585 ±440 ±3100 mV

0

±440 ±300 mV

VCC/2

V

2.2

2.8

V

48

mA

Notes

1

1. Transmitter peak current is attained by dividing the measured maximum differential output peak voltage by

the load resistance value.

Datasheet

75

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