DP83815DUJB National Semiconductor, DP83815DUJB Datasheet - Page 26

• Manufacturer Part Number: DP83815DUJB
• Description: IC, ENET CTRL 10BASET, 100MBPS, LBGA-160
• Manufacturer: National Semiconductor

Specifications of DP83815DUJB

• Data Rate: 100Mbps
• Ethernet Type: 10BASE-T
• Supply Current: 170mA
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +70°C
• No. Of Pins: 160
• Termination Type: SMD
• Filter Terminals: SMD
• Rohs Compliant: No
• Data Rate Max: 100Mbps
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Subject to change without notice.
Figure 3-10 EIA/TIA Attenuation vs. Frequency for 0, 50,
3.0 Functional Description
Figure 3-11 MLT-3 Signal Measured at AII after 0 meters
3.10.4 Line Quality Monitor
It is possible to determine the amount of Equalization being
used by accessing certain test registers with the DSP
engine. This provides a crude indication of connected
cable length. This function allows for a quick and simple
verification of the line quality in that any significant
deviation from an expected register value (based on a
known cable length) would indicate that the signal quality
has deviated from the expected nominal case.
100, 130 & 150 meters of CAT V cable
of CAT V cable
2ns/div
(Continued)
26
3.10.5 MLT-3 to NRZI Decoder
The DP83815 decodes the MLT-3 information from the
Digital Adaptive Equalizer block to binary NRZI data.
Figure 3-13 MLT-3 Signal Measured at AII after 100
Figure 3-12 MLT-3 Signal Measured at AII after 50
meters of CAT V cable
meters of CAT V cable
2ns/div
2ns/div
Rev O
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