V62SLASH12615-01XE-R datasheet(48/98 Pages) TI1

tên linh kiện	V62/12615-01XE-R

Giải thích chi tiết về linh kiện	DP83848-EP PHYTER??Military Temperature Single Port 10/100 Mbps Ethernet Physical Layer Transceiver

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Attenuation versus Frequency

Frequency (MHz)

100

120

150m

130m

100m

50m

DP83848-EP

SLLSEC6E – SEPTEMBER 2012 – REVISED JUNE 2019

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Detailed Description

The DP83848-EP uses an extremely robust equalization scheme referred as ‘Digital Adaptive

Equalization.’

The Digital Equalizer removes ISI (inter symbol interference) from the receive data stream by continuously

adapting to provide a filter with the inverse frequency response of the channel. Equalization is combined

with an adaptive gain control stage. This enables the receive 'eye pattern' to be opened sufficiently to

allow very reliable data recovery.

The curves given in Figure 5-8 illustrate attenuation at certain frequencies for given cable lengths. This is

derived from the worst case frequency vs attenuation figures as specified in the EIA/TIA Bulletin TSB-36.

These curves indicate the significant variations in signal attenuation that must be compensated for by the

receive adaptive equalization circuit.

Figure 5-7. EIA/TIA Attenuation vs Frequency for 0, 50, 100, 130, and 150 M of CAT 5 Cable

5.5.1.2.2.2 Base Line Wander Compensation

Figure 5-8. 100BASE-TX BLW Event

V62/12615-01XE-R bảng dữ liệu(PDF) 48 Page - Texas Instruments