LAN8810I-AKZE Datasheet, PDF (83/100 Pages) Microchip Technology – GMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support

5.2
5.3
GMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
Operating Conditions**
Supply Voltage (VDDVARIO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.25V to +3.6V
Supply Voltage (VDD12A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1.14V to +1.26V
Digital Core Supply Voltage (VDD12CORE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1.14V to +1.26V
Ethernet Magnetics Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.25V to +3.6V
Ambient Operating Temperature in Still Air (T_A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Note 5.4
**Proper operation of the device is guaranteed only within the ranges specified in this section. After
the device has completed power-up, VDDVARIO and the magnetics power supply must maintain their
voltage level within +/-10%. Varying the voltage greater than +/-10% after the device has completed
power-up can cause errors in device operation.
Power Consumption
This section details the power consumption of the device as measured during various modes of
operation. Power consumption values are provided for both the device-only, and for the device plus
Ethernet components. Power dissipation is impacted by temperature, supply voltage, and external
source/sink requirements. All measurements were taken at +25°C.
Note: All power consumption values are preliminary and subject to change.
Table 5.1 Power Consumption - 1000BASE-T Linked
PARAMETER
Supply Current (VDDVARIO) (@ +3.3V)
Supply Current (VDD12CORE, VDD12BIAS, VDD12PLL, VDD12A) (@ +1.2V)
External Magnetics Current (@ +3.3V)
Total Power Dissipation (Device Only) (Note 5.5)
Total Power Dissipation (Device and Ethernet components) (Note 5.5)
TYPICAL
36
454
202
665
1331
UNIT
mA
mA
mA
mW
mW
Note 5.5 When the external magnetics operate at +2.5V, current consumption remains the same.
However, Ethernet component power consumption will be reduced accordingly.
Table 5.2 Power Consumption - 100BASE-TX Linked
PARAMETER
TYPICAL
Supply Current (VDDVARIO) (@ +3.3V)
24
Supply Current (VDD12CORE, VDD12BIAS, VDD12PLL, VDD12A) (@ +1.2V)
82
External Magnetics Current (@ +3.3V)
63
Total Power Dissipation (Device Only) (Note 5.6)
177
Total Power Dissipation (Device and Ethernet components) (Note 5.6)
385
UNIT
mA
mA
mA
mW
mW
Note 5.6 When the external magnetics operate at +2.5V, current consumption remains the same.
However, Ethernet component power consumption will be reduced accordingly.
SMSC LAN8810/LAN8810i
83
DATASHEET
Revision 1.0 (02-06-13)