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82540EP — Networking Silicon
16 Datasheet
3.7.3 Ground and No Connects
3.7.4 Control Signals
Symbol Type Name and Function
GND P Ground.
NC P
No Connect. Do not connect any circuitry to these pins. Pull-up or pull-down resistors
should not be connected to these pins.
Symbol Type Name and Function
CTRL_15 A
1.5V Control. LDO voltage regulator output to drive external pass transistor. If 1.5V is
already present in the system, leave output unconnected. To achieve optimal D
3
power
consumption (<50 mw), leave the output unconnected and use a high-efficiency
external switching regulator.
CTRL_25 A
2.5V Control. LDO voltage regulator output to drive external pass transistor. If 2.5V is
already present in the system, leave output unconnected. To achieve optimal D
3
power
consumption (<50 mw), leave the output unconnected and use a high-efficiency
external switching regulator.