MAX3982 查看數據表（PDF） - Maxim Integrated
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MAX3982 Datasheet PDF : 15 Pages
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SFP Copper-Cable Preemphasis Driver
Typical Operating Characteristics (continued)
(VCC = +3.3V, TA = +25°C, unless otherwise noted. PRBS7 + 100CID pattern is PRBS 27, 100 zeros, 1010, PRBS 27, 100 ones, 0101.)
END-TO-END EYE DIAGRAM,
20m 24AWG CABLE AT 4.25Gbps
MAX3982 toc04
END-TO-END EYE DIAGRAM,
20m 24AWG CABLE AT 2.125Gbps
MAX3982 toc05
END-TO-END EYE DIAGRAM,
20m 24AWG CABLE AT 1.0625Gbps
MAX3982 toc06
4.25Gbps PRBS7 + 100CID PATTERN,
0in FR4 AT INPUT, USING MAX3748
AS RECEIVER, AS SHOWN IN FIGURE 3
2.125Gbps PRBS7 + 100CID PATTERN,
0in FR4 AT INPUT, USING MAX3748
AS RECEIVER, AS SHOWN IN FIGURE 3
1.0625Gbps PRBS7 + 100CID PATTERN,
0in FR4 AT INPUT, USING MAX3748
AS RECEIVER, AS SHOWN IN FIGURE 3
END-TO-END DETERMINISTIC JITTER
vs. CABLE LENGTH AT 1.0625Gbps
0.50
1.0625Gbps PRBS7 + 100CID
0.45
12in FR4 AT INPUT
0.40 USING MAX3748 AS RECEIVER,
0.35 AS SHOWN IN FIGURE 3
0.30
PE[1,0] = 00
0.25
PE[1,0] = 01
0.20
0.15
0.10
PE[1,0] = 11
PE[1,0] = 10
0.05
0
0
5
10
15
20
CABLE LENGTH (m)
VERTICAL EYE OPENING
vs. CABLE LENGTH WITH OUTLEV = LOW
700
600
PE[1,0] = 00
500
PE[1,0] = 01
400
PE[1,0] = 10
300
PE[1,0] = 11
200
100
4.25Gbps PRBS7 + 100CID
0
0
5
10
15
CABLE LENGTH (m)
VERTICAL EYE OPENING
vs. CABLE LENGTH WITH OUTLEV = LOW
700
PE[1,0] = 00
600
500
PE[1,0] = 01
400
PE[1,0] = 10
300
PE[1,0] = 11
200
100
4.25Gbps PRBS7 + 100CID
0
0
5
10
15
CABLE LENGTH (m)
INPUT RETURN LOSS vs. FREQUENCY
0
USING AGILENT 8720ES AND ATN MICROWAVE
-5 ATN-4112A S-PARAMETER TEST SET
DE-EMBEDDING SMA CONNECTOR, COUPLING
-10 CAPACITOR, AND 1cm TRACE
-15
-20
-25
-30
-35
-40
100
1000
FREQUENCY (MHz)
10,000
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