ds64ev400sqx National Semiconductor Corporation, ds64ev400sqx Datasheet - Page 13

• Manufacturer Part Number: ds64ev400sqx
• Description: Programmable Quad Equalizer
• Manufacturer: National Semiconductor Corporation

ond, careful attention to supply bypassing through the proper
use of bypass capacitors is required. A 0.01μF bypass ca-
pacitor should be connected to each V
capacitor is placed as close as possible to the DS64EV400.
Smaller body size capacitors can help facilitate proper com-
Typical Performance Eye Diagrams and Curves
(40 In FR4, 6.4 Gbps, PRBS7, 0x06 Setting)
(40 In FR4, 2.5Gbps, PRBS7, 0x07 Setting)
Figure 10. Equalized Signal
Figure 8. Equalized Signal
DD
pin such that the
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ponent placement. Additionally, three capacitors with capac-
itance in the range of 2.2 μF to 10 μF should be incorporated
in the power supply bypassing design as well. These capac-
itors can be either tantalum or an ultra-low ESR ceramic and
should be placed as close as possible to the DS64EV400.
(40 In FR4, 6.4 Gbps, PRBS31, 0x06 Setting)
(40 In FR4, 5Gbps, PRBS7, 0x07 Setting)
Figure 11. Equalized Signal
Figure 9. Equalized Signal
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