IP178G datasheet(13/76 Pages) ETC2

13 / 76 page

IP178G

Data Sheet

13 / 76

December 19, 2012

IP178G-DS-R01.3

Pin description

Table 2 Pin description

Type

Description

Type

Description

Input pin

IPL

Input pin with internal pull low 100K ohm

Output pin

IPH

Input pin with internal pull high 200K ohm

Power or Ground

3.1

Analog pins

Pin No.

Label

Type

Description

LDO Regulator

VREG_LDO

LDO regulator output

It is an output power pin for 1.1V power source.

PVDD_LDO

LDO regulator input

It is an input power pin for reference voltage.

IP178G includes a LDO regulator to convert 3.3V to 1.1V.

3.2

MDI (Media Dependent Interface)

Pin No.

Label

Type

Description

Transceiver

57, 58,

65, 64,

67, 68,

7, 6,

12, 13

20, 19

23, 24

31 30

RXIP0, RXIM0,

RXIP1, RXIM1,

RXIP2, RXIM2,

RXIP3, RXIM3,

RXIP4, RXIM4

RXIP5, RXIM5

RXIP6, RXIM6

RXIP7, RXIM7

TP receive

59, 60,

63, 62,

1, 2,

5, 4,

14, 15

18, 17

25, 26

29, 28

TXOP0, TXOM0,

TXOP1, TXOM1,

TXOP2, TXOM2,

TXOP3, TXOM3,

TXOP4, TXOM4

TXOP5, TXOM5,

TXOP6, TXOM6,

TXOP7, TXOM7,

TP transmit

FXSD6

FXSD7

Fiber signal detection of port 6,7

Port 6,7 can be configured to be either a TP port or a Fiber

port with this pin. Connect this pin to GND for TP mode,

and do not left this pin floating. Please refer to the

paragraph “I/O Electrical Characteristics” for more detail

information.

BGRES

Band gap resistor.

It is connected GND through a precision resistor

(R=6.19K, 1%) for band gap reference. Please refer to

application circuit for more information.

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