EVK-DS40MB200 National Semiconductor, EVK-DS40MB200 Datasheet - Page 12

• Manufacturer Part Number: EVK-DS40MB200
• Description: BOARD EVALUATION DS40MB200
• Manufacturer: National Semiconductor

Specifications of EVK-DS40MB200

• Main Purpose: Interface, 2:1 Multiplexer
• Utilized Ic / Part: DS40MB200
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

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Applications Information
The DS40MB200 input equalizer provides equalization to
compensate about 5 dB of transmission loss from a short
backplane transmission line. For characterization purposes,
a 25-inch FR4 coupled micro-strip board trace is used in place
Trace Length
25 inches
FIGURE 7. Data input and output eye patterns with driver set to 0 dB pre-emphasis
Finished Trace
Width W
8.5 mil
Separation between
11.5 mil
Traces
12
Dielectric Height H
of the short backplane link. The 25-inch microstrip board trace
has approximately 5 dB of attenuation between 375 MHz and
1.875 GHz, representing closely the transmission loss of the
short backplane transmission line. The 25-inch microstrip is
connected between the pattern generator and the differential
inputs of the DS40MB200 for AC measurements.
6 mil
Dielectric Constant
3.8
ε
R
Loss Tangent
20021742
0.022