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TLK3134 EVM Layer Construction
Subclass
Name
Type
SURFACE
TOP
CONDUCTOR
DIELECTRIC
L2_GND
PLANE
DIELECTRIC
L3_SIG
CONDUCTOR
DIELECTRIC
L4_GND
PLANE
DIELECTRIC
L5_SIG
CONDUCTOR
DIELECTRIC
L6_GND
PLANE
DIELECTRIC
L7_VCC
PLANE
DIELECTRIC
L8_GND
PLANE
DIELECTRIC
L9_VCC
PLANE
DIELECTRIC
L10_GND
PLANE
DIELECTRIC
L11_GND
PLANE
DIELECTRIC
L12_SIG
CONDUCTOR
DIELECTRIC
L13_GND
PLANE
DIELECTRIC
L14_SIG
CONDUCTOR
DIELECTRIC
L15_GND
PLANE
DIELECTRIC
BOTTOM
CONDUCTOR
SURFACE
**NOTE: The Impedance is set to 48.6 on the external signal traces (Top and Bottom) to
compensate for our manufacturer's etching process. The end impedance after etching
should result in a 50 ohm Impedance. Always consult with your board manufacturer for
their process/design requirements to ensure the desired impedance is achieved.
56
TLK3134 XAUI Transceiver / 4 Channel Multi-Rate Transceiver Evaluation Module (EVM) Users' Guide
SLLU104A - September 2007
Thickness
Conductivity
Material
(MIL)
(mho/cm)
AIR
COPPER
2.4
FR-4
5
COPPER
1.2
FR-4
7
COPPER
1.2
FR-4
7
COPPER
1.2
FR-4
7
COPPER
1.2
FR-4
7
COPPER
1.2
FR-4
5
COPPER
1.2
595900
FR-4
5
COPPER
1.2
FR-4
5
COPPER
1.2
595900
FR-4
5
COPPER
1.2
595900
FR-4
5
COPPER
1.2
595900
FR-4
7
COPPER
1.2
FR-4
7
COPPER
1.2
595900
FR-4
7
COPPER
1.2
FR-4
7
COPPER
1.2
595900
FR-4
7
COPPER
2.4
AIR
Dielectric
Loss
Constant
Tangent
595900
1
0
0
4.1
0.035
595900
1
0
0
4.1
0.035
595900
1
0
0
4.1
0.035
595900
1
0
0
4.1
0.035
595900
1
0
0
4.1
0.035
595900
1
0
0
4.1
0.035
1
0
0
4.1
0.035
595900
1
0
0
4.1
0.035
1
0
0
4.1
0.035
1
0
0
4.1
0.035
1
0
0
4.1
0.035
595900
1
0
0
4.1
0.035
1
0
0
4.1
0.035
595900
1
0
0
4.1
0.035
1
0
0
4.1
0.035
595900
1
0
Width
Impedance
Artwork
(MIL)
(ohm)
POSITIVE
9.25
48.6
NEGATIVE
POSITIVE
6
50.371
NEGATIVE
POSITIVE
6
50.371
NEGATIVE
NEGATIVE
NEGATIVE
NEGATIVE
NEGATIVE
NEGATIVE
POSITIVE
6
50.371
NEGATIVE
POSITIVE
6
50.371
NEGATIVE
POSITIVE
9.25
48.6
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