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AX88772 Datasheet(PDF) 35 Page - ASIX Electronics Corporation

Part # AX88772
Description  USB to 10/100 Fast Ethernet/HomePNA Controller
PDF  43 Pages
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Manufacturer  ASIX [ASIX Electronics Corporation]
Direct Link  http://www.asix.com.tw
Logo ASIX - ASIX Electronics Corporation

AX88772 Datasheet(HTML) 35 Page - ASIX Electronics Corporation

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ASIX ELECTRONICS CORPORATION
35
AX88772
USB to 10/100 Fast Ethernet/HomePNA Controller
8.2 Power Consumption
8.2.1
Internal Phy
Symbol
Description
Condition
Min
Typ
Max Units
IVDDK2
Current consumption of VDDK/VDD2,
2.5V
-
25.4
-
mA
IVDD3
Current consumption of VDD3, 3.3V
-
< 1
-
mA
IAVDDK
Current consumption of AVDDK, 2.5V
-
69.3
-
mA
IAVDD3
Current consumption of AVDD3, 3.3V
Operating at Ethernet
100Mbps full duplex
mode and USB High
speed mode
-
51.1
-
mA
ΘJC
Thermal resistance of junction to case
16.5
°C/W
ΘJA
Thermal resistance of junction to ambient Still air
46
°C/W
8.2.2
Operating through MII Interface with Internal Ethernet PHY Power-down
Symbol
Description
Condition
Min
Typ
Max Units
IVDDK2
Current consumption of VDDK/VDD2,
2.5V
-
25.4
-
mA
IVDD3
Current consumption of VDD3, 3.3V
-
< 1
-
mA
IAVDDK
Current consumption of AVDDK, 2.5V
-
< 2
-
mA
IAVDD3
Current consumption of AVDD3, 3.3V
Operating in Ethernet
100Mbps full duplex
mode
through
MII
interface and in USB
High speed mode. The
embedded
Ethernet
PHY
is
powered
down by IPPD bit in
Software
Reset
Register
-
51.1
-
mA
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
Parameter
Condition
Min
Typ
Max
Unit
Trise3
3.3V power supply rise time
From 0V to 3.3V
-
-
10
ms
Trise2
2.5V power supply rise time
From 0V to 2.5V
-
-
10
ms
Tdelay32
3.3V rise to 2.5V rise time delay
-5
-
5
ms
0V
3.3V
Trise3
0V
2.5V
Trise2
Tdelay32
VDDK/VDD2/AVDDK
VDD3/AVDD3



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