MAX3981 查看數據表（PDF） - Maxim Integrated
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MAX3981 Datasheet PDF : 9 Pages
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3.125Gbps XAUI Quad Cable Equalizer
Pin Description
PIN
1, 5, 9, 13,
23, 27, 31, 35
4, 8, 12, 16,
26, 30, 34, 38
2
3
6
7
10
11
14
15
17–22, 39–42
24
25
28
29
32
33
36
37
43
44
EP
NAME
VCC
GND
IN1+
IN1-
IN2+
IN2-
IN3+
IN3-
IN4+
IN4-
N.C.
OUT4-
OUT4+
OUT3-
OUT3+
OUT2-
OUT2+
OUT1-
OUT1+
EN
SDET
Exposed
Pad
+3.3V Supply Voltage
FUNCTION
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.
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