參數(shù)資料
型號(hào): 82571EB
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: Gigabit Ethernet Controller
中文描述: 2 CHANNEL(S), 1000M bps, LOCAL AREA NETWORK CONTROLLER, BGA256
封裝: 17 X 17 MM, FC-BGA-256
文件頁(yè)數(shù): 26/58頁(yè)
文件大?。?/td> 318K
代理商: 82571EB
82571EB/82572EI Gigabit Ethernet Controller
20
Product Datasheet
4.2.3
Voltage Power Sequencing Options
To meet 375 mA inrush current requirements (not including external capacitors) the ramp time
should be 5 ms -100 ms on all power rails. For faster ramps (100 us - 5 ms), expect higher inrush
current due to the high charging current of the decoupling capacitors of 3.3V, 1.8V and 1.1V rails.
4.3
DC Specifications
Ripple
Maximum voltage ripple at a bandwidth
equal to 1 MHz
N/A
40
mV
peak-peak
Overshoot
SettlingTime
Overshoot time upon ramp
b
N/A
0.05
ms
Overshoot
Maximum voltage allowed
b
N/A
100
mV
a.
b.
Good design practices achieve voltage ramps to within the regulation bands in approximately 20 ms or less.
Excessive overshoot can affect long term reliability.
Table 5.
1.1V Supply Voltage Ramp
Table 6.
DC Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Units
VCC(3.3)
DC supply voltage on 3.3V
pins
3.00
3.30
3.60
V
VCC(1.8)
DC supply voltage on 1.8V
pins
1.71
1.80
1.89
V
VCC(1.1)
DC supply voltage on 1.1V
pins
1.045
1.100
1.155
V
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