3.125Gbps XAUI Quad Equalizer

_______________________________________________________________________________________

5

Pin Description

PIN

NAME

FUNCTION

1, 5, 9, 13,

23, 27, 31,

35

+3.3V Supply Voltage

2

IN1+

Positive Equalizer Input Channel 1, CML

3

IN1-

Negative Equalizer Input Channel 1, CML

4, 8, 12, 16,

26, 30, 34,

38

GND

Supply Ground

6

IN2+

Positive Equalizer Input Channel 2, CML

7

IN2-

Negative Equalizer Input Channel 2, CML

10

IN3+

Positive Equalizer Input Channel 3, CML

11

IN3-

Negative Equalizer Input Channel 3, CML

14

IN4+

Positive Equalizer Input Channel 4, CML

15

IN4-

Negative Equalizer Input Channel 4, CML

17–22, 39–42

N.C.

No Connection. Leave unconnected.

24

OUT4-

Negative Equalizer Output Channel 4, CML

25

OUT4+

Positive Equalizer Output Channel 4, CML

28

OUT3-

Negative Equalizer Output Channel 3, CML

29

OUT3+

Positive Equalizer Output Channel 3, CML

32

OUT2-

Negative Equalizer Output Channel 2, CML

33

OUT2+

Positive Equalizer Output Channel 2, CML

36

OUT1-

Negative Equalizer Output Channel 1, CML

37

OUT1+

Positive Equalizer Output Channel 1, CML

43

EN

Enable Equalizer Input. A TTL high selects normal operation. A TTL low selects low-power

standby mode.

44

SDET

Signal Detect Output for Channel 1. Produces a TTL high output when a signal is detected.

—

EP

Exposed Pad. The exposed pad must be soldered to the circuit board ground plane for proper

thermal and electrical performance.