4

●

Impedance

0

0.2

0.4

0.6

0.8

1

90

95

100

105

110

Time (ns)

Outer row

0

0.2

0.4

0.6

0.8

1

90

95

100

105

110

Time (ns)

Inner row

The differential impedance is 100±10 ohm for FX18 at 35 ps rise time (20% to 80%)

●

Insertion Loss

0

2

4

6

8

10

-3

-2.5

-2

-1.5

-1

-0.5

0

Frequency (GHz)

Outer row

0

2

4

6

8

10

-3

-2.5

-2

-1.5

-1

-0.5

0

Frequency (GHz)

Inner row

The differential insertion loss crosses 1dB at 6GHz for FX18.

●

Return loss

0

5

10

15

20

-50

-40

-30

-20

-10

0

Frequency (GHz)

RL

IEEE Spec

0

5

10

15

20

-50

-40

-30

-20

-10

0

Frequency (GHz)

RL

IEEE Spec

The differential return loss meets the IEEE 802.3ap specification to 10 GHz for FX18.

Inner row

Outer row

Inner row

Outer row

Inner row

Outer row