LAN9252VSLASHML datasheet(29/329 Pages) MICROCHIP

No. de pieza	LAN9252V/ML

Descripción Electrónicos	2/3-Port EtherCAT® Slave Controller with Integrated Ethernet PHYs

PDF	329 Pages

Scroll/Zoom	100%

Fabricante Electrónico	MICROCHIP [Microchip Technology]

Página de inicio	http://www.microchip.com

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29 / 329 page

 2015 Microchip Technology Inc.

DS00001909A-page 29

LAN9252

4.0

POWER CONNECTIONS

Figure 4-1 and Figure 4-2 illustrate the device power connections for regulator enabled and disabled cases, respec-

tively. Refer to the device reference schematic and the device LANCheck schematic checklist for additional information.

Section 4.1 provides additional information on the devices internal voltage regulators.

FIGURE 4-1:

POWER CONNECTIONS - REGULATORS ENABLED

+1.8 V to

+3.3 V

VDDCR

Core Logic &

PHY digital

VDD12TX2

Ethernet PHY 1

Analog

1.0 µF

0.1

 ESR

VDD33BIAS

VDD33TXRX1

VSS

VDDCR

Ethernet PHY 2

Analog

VDD12TX1

VDD33TXRX2

Ethernet Master

Bias

IO Pads

To PHY1

Magnetics

To PHY2

Magnetics

Note: Bypass and bulk caps as needed for PCB

VDDIO

VDD33

+3.3 V

470 pF

Crystal Oscillator

VSS

PLL

(exposed pad)

(or separate 2.5V)

VDDIO

VDDCR

OSCVDD12

OSCVSS

+3.3 V

(IN)

+1.2 V

(OUT)

Internal 1.2 V Core

Regulator

enable

+3.3 V

(IN)

+1.2 V

(OUT)

Internal 1.2 V Oscillator

Regulator

VSS

enable

REG_EN

(Pin 6)

LAN9252V/ML Datasheet(PDF) 29 Page - Microchip Technology

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