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RTL8211E-VL-CG Datasheet(PDF) 61 Page - Realtek Semiconductor Corp.

Part No. RTL8211E-VL-CG
Description  INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER
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Maker  REALTEK [Realtek Semiconductor Corp.]
Homepage  https://www.realtek.com/en/
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RTL8211E-VL-CG Datasheet(HTML) 61 Page - Realtek Semiconductor Corp.

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RTL8211E/RTL8211EG
Datasheet
Integrated 10/100/1000M Ethernet Transceiver
53
Track ID: JATR-2265-11 Rev. 1.4
Figure 24. Switching Regulator Efficiency Measurement Checkpoint
9.5. Power Sequence
2.5V RGMII
3. 3V
1. 05V
0V
Rt1
Rt2
Figure 25. Power Sequence
Table 49. Power Sequence parameter
Symbol
Description
Min
Typical
Max
Units
Rt1
3.3V Rise Time
1
-
100
ms
Rt1
2.5V RGMII Rise Time
-
-
100
ms
Rt2
3.3V Off Time
100
-
-
ms
Note 1: The RTL8211E/RTL8211EG does not support fast 3.3V rising. The 3.3V rise time must be controlled over 1ms. If the
rise time is too short, it will induce a peak voltage in VDDREG which may cause permanent damage to the switching
regulator.
Note 2: If there is any action that involves consecutive ON/OFF toggling of the switching-regulator source (3.3V), the
design must make sure the OFF state of both the switching-regulator source (3.3V) and output (1.05V) reach 0V, and the
time period between the consecutive ON/OFF toggling action must be longer than 100ms.
Note 3: When using an external oscillator or clock source, on stopping the clock source the RTL8211E/RTL8211EG must
also be powered off.
CP_B
CP_A


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