Intel RBIAS100 Resistance Versus Transmitter Current, Networking Silicon - GD82559ER, Rbias100

Models: GD82559ER

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Networking Silicon — GD82559ER

Table 19. 100BASE-TX Voltage/Current Characteristics

VIDR100

Input Differential

 

 

 

±100

mV

 

Reject Peak Voltage

 

 

 

 

VICM100

Input Common Mode

 

 

VCC/2

 

V

 

Voltage

 

 

 

 

VOD100

Output Differential

 

0.95

1.00

1.05

V

 

Peak Voltage

 

 

ICCT100

Line Driver Supply

RBIAS100 = 619 Ω

 

20

 

mA

1

Peak Current

 

 

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

5850hm

619Ohm

650Ohm

 

 

 

 

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

 

 

Min

 

Typical

 

Max

 

Units

Notes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RID10

Input Differential

10 MHz

 

 

10

 

 

 

 

 

KΩ

 

 

Impedance

 

 

 

 

 

 

 

 

 

VIDA10

Input Differential

5 MHz f 10 MHz

 

±585

 

±440

 

±3100

 

mV

 

 

Accept Peak Voltage

 

 

 

 

 

 

VIDR10

Input Differential

5 MHz f 10 MHz

 

0

 

±440

 

±300

 

mV

 

 

Reject Peak Voltage

 

 

 

 

 

 

VICM10

Input Common Mode

 

 

 

 

 

VCC/2

 

 

 

V

 

 

Voltage

 

 

 

 

 

 

 

 

 

 

VOD10

Output Differential

RL = 100 Ω

 

 

2.2

 

 

 

2.8

 

V

 

 

Peak Voltage

 

 

 

 

 

 

 

 

ICCT10

Line Driver Supply

RBIAS10 = 549 Ω

 

 

 

48

 

 

 

mA

1

 

Peak Current

 

 

 

 

 

 

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

Datasheet

75

Page 81
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Intel GD82559ER manual RBIAS100 Resistance Versus Transmitter Current, 10BASE-T Voltage/Current Characteristics, Datasheet