MAX3981 Maxim Integrated Products, MAX3981 Datasheet - Page 5

• Manufacturer Part Number: MAX3981
• Description: XAUI Quad Cable Equalizer
• Manufacturer: Maxim Integrated Products

23, 27, 31, 35
26, 30, 34, 38
17–22, 39–42
4, 8, 12, 16,
1, 5, 9, 13,
PIN
EP
10
11
14
15
24
25
28
29
32
33
36
37
43
44
2
3
6
7
Exposed
OUT4+
OUT3+
OUT2+
OUT1+
NAME
OUT4-
OUT3-
OUT2-
OUT1-
SDET
GND
IN1+
IN2+
IN3+
IN4+
IN1-
IN2-
IN3-
IN4-
N.C.
V
Pad
EN
_______________________________________________________________________________________
CC
3.125Gbps XAUI Quad Cable Equalizer
+3.3V Supply Voltage
Supply Ground
Positive Equalizer Input Channel 1, CML
Negative Equalizer Input Channel 1, CML
Positive Equalizer Input Channel 2, CML
Negative Equalizer Input Channel 2, CML
Positive Equalizer Input Channel 3, CML
Negative Equalizer Input Channel 3, CML
Positive Equalizer Input Channel 4, CML
Negative Equalizer Input Channel 4, CML
No Connection. Leave unconnected.
Negative Equalizer Output Channel 4, CML
Positive Equalizer Output Channel 4, CML
Negative Equalizer Output Channel 3, CML
Positive Equalizer Output Channel 3, CML
Negative Equalizer Output Channel 2, CML
Positive Equalizer Output Channel 2, CML
Negative Equalizer Output Channel 1, CML
Positive Equalizer Output Channel 1, CML
Enable Equalizer Input. A TTL high selects normal operation. A TTL low selects low-power standby
mode.
Signal Detect Output for Channel 1. Produces a TTL high output when a signal is detected.
Ground. The exposed pad must be soldered to the circuit board ground plane for proper thermal and
electrical performance.
FUNCTION
Pin Description
5