Datasheet

 2013-2015 Microchip Technology Inc. DS00001987A-page 53
LAN8740A/LAN8740Ai
3.9 Application Diagrams
This section provides typical application diagrams for the following:
• Simplified System Level Application Diagram
• Power Supply Diagram (1.2 V Supplied by Internal Regulator)
• Power Supply Diagram (1.2 V Supplied by External Source)
• Twisted-Pair Interface Diagram (Single Power Supply)
• Twisted-Pair Interface Diagram (Dual Power Supplies)
3.9.1 SIMPLIFIED SYSTEM LEVEL APPLICATION DIAGRAM
FIGURE 3-17: SIMPLIFIED SYSTEM LEVEL APPLICATION DIAGRAM
LAN8740A/LAN8740Ai
10/100 PHY
32-VQFN
MII
TXP
TXN
Mag RJ45
RXP
RXN
25 MHz
XTAL1/CLKIN
XTAL2
TXD[3:0]
4
RXD[3:0]
RXCLK
RXDV
4
MII
LED[2:1]
2
Interface
MDIO
MDC
nINT
nRST
TXCLK
TXER
TXEN