VSC8601 Datasheet
Electrical Specifications
Table 55.
Current Consumption: 1000BASE-T, Regulator Enabled (continued)
Parameter
Symbol
Typical
< 1
Unit
mA
Current with VDDIOMICRO at 2.5 V
Total power at 3.3 V
Total power at 2.5 V
IVDDIOMICRO
734
mW
mW
686
The following table shows the current consumption values with a 1000BASE-T link and
the on-chip switching regulator disabled.
Table 56.
Current Consumption: 1000BASE-T, Regulator Disabled
Parameter
Symbol
IVDD33
Typical
115
< 1
136
34
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mW
mW
Current with VDD33 at 3.3 V
Current with VDDREG
IVDDREG
Current with VDD12 at 1.2 V
Current with VDD12A at 1.2 V
Current with VDDIOMAC at 3.3 V
Current with VDDIOMAC at 2.5 V
Current with VDDIOMICRO at 3.3 V
Current with VDDIOMICRO at 2.5 V
Total power at 3.3 V
IVDD12
IVDD12A
IVDDIOMAC
IVDDIOMAC
IVDDIOMICRO
IVDDIOMICRO
32
23
< 1
< 1
689
641
Total power at 2.5 V
5.2.2
Consumption with 100BASE-TX Link
The following table shows the current consumption values with a 100BASE-TX link and
the on-chip switching regulator enabled.
Table 57.
Current Consumption: 100BASE-TX, Regulator Enabled
Parameter
Symbol
IVDD33
Typical
94
Unit
mA
mA
mA
mA
mA
mA
mW
mW
Current with VDD33 at 3.3 V
Current with VDDREG
IVDDREG
35
Current with VDDIOMAC at 3.3 V
Current with VDDIOMAC at 2.5 V
Current with VDDIOMICRO at 3.3 V
Current with VDDIOMICRO at 2.5 V
Total power at 3.3 V
IVDDIOMAC
IVDDIOMAC
IVDDIOMICRO
IVDDIOMICRO
5
3
< 1
< 1
442
433
Total power at 2.5 V
The following table shows the current consumption values with a 100BASE-TX link and
the on-chip switching regulator disabled.
Table 58.
Current Consumption: 100BASE-TX, Regulator Disabled
Parameter
Symbol
Typical
Unit
Current with VDD33 at 3.3 V
IVDD33
94
mA
Revision 4.1
September 2009
Page 71
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
