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| 82551QM Datasheet, PDF (98/120 Pages) Intel Corporation – Fast Ethernet Multifunction PCI/CardBus Controller | |||
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82551QM â Networking Silicon
Table 67. LED Voltage/Current Characteristics
Symbol
Parameter
VOHLED
VOLLED
Output High Voltage
Output Low Voltage
Condition
Iout = -10 mA
Iout = 10 mA
Min Typical Max
2.4
0.7
Units
V
V
Notes
Table 68. 100BASE-TX Voltage/Current Characteristics
Symbol
Parameter
Condition
RID100
VIDA100
VIDR100
VICM100
VOD100
ICCT100
Input Differential
Impedance
DC
Input Differential
Accept Peak Voltage
Input Differential
Reject Peak Voltage
Input Common Mode
Voltage
Output Differential
Peak Voltage
Line Driver Supply
Peak Current
RBIAS100 = 649 ï
Min Typical Max
10
±500
±100
VCC/2
0.95 1.00 1.05
20
Units
Kï
mV
mV
V
V
mA
Notes
1, 2
NOTES:
1. Current is measured on all VCC pins (VCC = 3.3 V). Recommended starting value for RBIAS100.
2. Transmitter peak current is attained by dividing the measured maximum differential output peak voltage by
the load resistance value.
Table 69. 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 ï£ f ï£ 10 MHz
Input Differential
Reject Peak Voltage
5 MHz ï£ f ï£ 10 MHz
Input Common Mode
Voltage
Output Differential
Peak Voltage
RL = 100 ï
Line Driver Supply
Peak Current
RBIAS10 = 619 ï
Min Typical Max
10
±585 ±440 ±3100
0
±440 ±300
VCC/2
2.2
2.8
20
Units
Kï
mV
mV
V
V
mA
Notes
1, 2
NOTES:
1. Current is measured on all VCC pins (VCC = 3.3 V). Recommended starting value for RBIAS10.
2. Transmitter peak current is attained by dividing the measured maximum differential output peak voltage by
the load resistance value.
92
Datasheet
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