LAN9215 View Datasheet(PDF) - SMSC -> Microchip

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LAN9215

Highly Efficient Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX

SMSC -> Microchip 

Highly Efficient Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX

Datasheet

Table 2.5 System and Power Signals (continued)

PIN

NO.

NAME

SYMBOL

BUFFER

TYPE

NUM

PINS

DESCRIPTION

3,65

Core Voltage

VDD_CORE

P

Decoupling

2

1.8 V from internal core regulator.

Both pins must be connected

together externally and then tied to a

10uF 0.1-Ohm ESR capacitor, in

parallel with a 0.01uF capacitor to

Ground next to each pin. See

Note 2.1

1,66

Core Ground

GND_CORE

P

2

Ground for internal digital logic

7

PLL Power

VDD_PLL

P

1

1.8V Power from the internal PLL

regulator. This external pin must be

connected to a 10uF 0.1-Ohm ESR

capacitor, in parallel with a 0.01uF

capacitor to Ground. See Note 2.1

4

PLL Ground

VSS_PLL

P

1

GND for the PLL

8

Reference Power

VDD_REF

P

1

Connected to 3.3v power and used

as the reference voltage for the

internal PLL

11 Reference Ground

VSS_REF

P

1

Ground for internal PLL reference

voltage

Note 2.1

Please refer to the SMSC application note AN 12.5x, entitled "Designing with the LAN9218

Family - Getting Started". It is also important to note that this application note applies to

the whole SMSC LAN9118 family of Ethernet controllers. However, subtle differences may

apply.

SMSC LAN9215

19

DATASHEET

Revision 1.5 (07-18-06)

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