Networking Silicon — 82551IT
Table 51. 10BASE-T Voltage/Current Characteristics
Symbol
RID10
Parameter
Condition
10 MHz
Min
Typical
Max
Units
Notes
Input Differential
Impedance
10
K
Input Differential
Accept Peak Voltage
VIDA10
VIDR10
VICM10
VOD10
ICCT10
5 MHz f 10 MHz
5 MHz f 10 MHz
±585
0
±440
±440
VCC/2
±3100
±300
mV
mV
V
Input Differential
Reject Peak Voltage
Input Common Mode
Voltage
Output Differential
Peak Voltage
RL = 100
2.2
2.8
V
Line Driver Supply
Peak Current
RBIAS10 = 619
20
mA
1, 2, 3
NOTES:
1. Current is measured on all VCC pins (VCC = 3.3 V).
2. Transmitter peak current is attained by dividing the measured maximum differential output peak voltage by
the load resistance value.
3. Recommended starting value for RBIAS10.
Table 52. Digital I/O Characteristics
Symbol
Parameter
Min
Typical
Max
Units
Notes
VIH
VIL
Output High Voltage
Output Low Voltage
2.0
Vcc+0.5
0.8
V
V
-0.5
Table 53. Crystal Input One (X1) Characteristics
Symbol
Parameter
Min
Typical
Max
Units
Notes
VIH
VIL
Input High Voltage
Input Low Voltage
2.0
Vcc+0.5
0.8
V
V
-0.5
Datasheet
79
INTEL [ INTEL ]
