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PDF DS38EP100 Data sheet ( Hoja de datos )
| Número de pieza | DS38EP100 | |
| Descripción | Power-Saver Equalizer | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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July 2007
DS38EP100
1 to 5 Gbps, Power-Saver Equalizer for Backplanes and
Cables
General Description
National’s Power-saver equalizer compensates for transmis-
sion medium losses and minimizes medium-induced deter-
ministic jitter. Performance is guaranteed over the full range
of 1 to 5 Gbps. The DS38EP100 requires no power to operate.
The equalizer operates anywhere in the data path to minimize
media-induced deterministic jitter in both FR4 and cable ap-
plications. Symmetric I/O structures support full duplex or half
duplex applications. Linear compensation is provided inde-
pendent of line coding or protocol. The device is ideal for both
bi-level and multi-level signaling.
The equalizer is available in a 6 pin leadless LLP package
with a space saving 2.2 mm X 2.5 mm footprint. This tiny
package provides maximum flexibility in placement and rout-
ing of the Power-saver equalizer.
Features
■ 1 to 5 Gbps Operation
■ No Power or Ground Required
■ Equalization effective anywhere in data path
■ Equalizes CML, LV-PECL, LVDS signals
■ Symmetric I/O structures provide equal boost for bi-
directional operation
■ 7 dB Maximum Boost
■ Code independent, 8b/10b or Scrambled
■ Supports both bi-level and multi-level signaling
■ Extends reach over backplanes and cables
■ Compatible with PCI-Express Gen1 and Gen2
■ Compatible with XAUI
■ Operates in series with existing active Equalizer
■ Easy to handle 6 pin LLP
Simplified Application Diagram
30029201
Note: The DS38EP100 provides the flexibility of passing the data from either side of the device. It can be placed anywhere in the data path..
© 2007 National Semiconductor Corporation 300292
www.national.com
1 page  
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Test Setup Diagrams
FIGURE 1. Transient Test Setup Diagram
30029203
FIGURE 2. Frequency Response Test Circuit
Typical Equalizer Transfer Function
30029204
30029206
FIGURE 3. Typical Equalizer Transfer Function
5 www.national.com
5 Page 
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30029221
FIGURE 15. Equalized Signal (30in FR4, 4.25Gbps,
PRBS7)
30029224
FIGURE 18. Equalized Signal (30in FR4, 5Gbps, PRBS7)
30029222
FIGURE 16. Equalized Signal (Zoom) (30in FR4,
4.25Gbps, PRBS7)
30029225
FIGURE 19. Equalized Signal (Zoom) (30in FR4, 5Gbps,
PRBS7)
30029223
FIGURE 17. Unequalized Signal (30in FR4, 5Gbps,
PRBS7)
30029226
FIGURE 20. Unequalized Signal (34in Tyco XAUI
Backplane, 3.125Gbps, PRBS7)
11 www.national.com
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet DS38EP100.PDF ] | |
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