82541ER Datasheet, PDF (23/48 Pages) Intel Corporation – 82541ER Gigabit Ethernet Controller

82541ER Gigabit Ethernet Controller
Table 4. 1.8V Supply Voltage Ramp
Ripple
Maximum voltage ripple at a bandwidth equal
to 50 MHz
20
mV
Overshoot
Maximum voltage allowed
2.2
V
Output
Capacitance
Capacitance range when using PNP circuit
4.7
20
µF
Input
Capacitance
Capacitance range when using PNP circuit
4.7
20
µF
Capacitance Equivalent series resistance of output
ESR
capacitance^b
5
100
mΩ
Ictrl_18
Maximum output current rating to CTRL18
20
mA
a. Operating with an internal regulator (PNP) supports a wider tolerance output voltage due to process tracking.
b. Tantalum capacitors must not be used.
Table 5. 1.2V Supply Voltage Ramp
Symbol
Parameter
Min
Max
Unit
Rise Time
Time from 10% to 90% mark
0.025
ms
Monotonicity Voltage dip allowed in ramp
0
mV
Slope
Ramp rate at any time between 10% to 90%
38400
V/s
Operational
Range
Voltage range for normal operating conditions
(PNP’s)^a
1.116
1.26
V
Operational
Range
Voltage range for normal operating conditions
(PNP’s)
-7
5
%
Operational
Range
Voltage range for normal operating conditions
(external regulator)
1.14
1.26
V
Operational
Range
Voltage range for normal operating conditions
(external regulator)
-5
5
%
Ripple
Maximum voltage ripple at a bandwidth equal
to 50 MHz
20
mV
Overshoot
Maximum voltage allowed
1.45
V
Output
Capacitance
Capacitance range when using PNP circuit
4.7
20
µF
Input
Capacitance
Capacitance range when using PNP circuit
4.7
20
µF
Capacitance Equivalent series resistance of output
ESR
capacitance^b
5
100
mΩ
Ictrl_12
Maximum output current rating to CTRL_12
20
mA
a. Operating with an internal regulator (PNP) supports a wider tolerance output voltage due to process tracking.
b. Tantalum capacitors must not be used.
Datasheet
17