AX88772_07 ASIX [ASIX Electronics Corporation], AX88772_07 Datasheet - Page 35

• Manufacturer Part Number: AX88772_07
• Description: USB to 10/100 Fast Ethernet/HomePNA Controller
• Manufacturer: ASIX [ASIX Electronics Corporation]

8.2 Power Consumption
8.2.1
8.2.2
8.3 Power-up Sequence
At power-up, AX88772 requires the VDD3/AVDD3 power supply to rise to nominal operating voltage within Trise3 and
the VDDK/AVDD2/AVDDK power supply to rise to nominal operating voltage within Trise2.
Symbol
T
Symbol
Symbol
VDDK/VDD2/AVDDK
I
I
I
I
I
I
T
T
I
AVDDK
I
AVDDK
delay32
VDDK2
AVDD3
VDDK2
AVDD3
VDD3/AVDD3
Θ
Θ
VDD3
VDD3
rise3
rise2
JC
JA
Internal Phy
Operating through MII Interface with Internal Ethernet PHY Power-down
3.3V power supply rise time
2.5V power supply rise time
3.3V rise to 2.5V rise time delay
Current consumption of VDDK/VDD2,
2.5V
Current consumption of VDD3, 3.3V
Current consumption of AVDDK, 2.5V
Current consumption of AVDD3, 3.3V
Thermal resistance of junction to case
Thermal resistance of junction to ambient Still air
Current consumption of VDDK/VDD2,
2.5V
Current consumption of VDD3, 3.3V
Current consumption of AVDDK, 2.5V
Current consumption of AVDD3, 3.3V
Parameter
Description
Description
USB to 10/100 Fast Ethernet/HomePNA Controller
Trise3
From 0V to 3.3V
From 0V to 2.5V
Trise2
Condition
Operating at Ethernet
100Mbps full duplex
mode and USB High
speed mode
Operating in Ethernet
100Mbps full duplex
mode
interface and in USB
High speed mode. The
embedded
PHY
down by IPPD bit in
Software
Register
35
Tdelay32
Condition
Condition
through
is
Min
-5
-
-
powered
Ethernet
Reset
ASIX ELECTRONICS CORPORATION
MII
Typ
-
-
-
Min
Min
-
-
-
-
-
-
-
-
3.3V
0V
0V
2.5V
Max
10
10
5
Typ
25.4
69.3
51.1
16.5
Typ
25.4
51.1
< 1
< 1
< 2
46
Unit
ms
ms
ms
Max Units
Max Units
-
-
-
-
-
-
-
-
AX88772
°C/W
°C/W
mA
mA
mA
mA
mA
mA
mA
mA