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DP83620 Datasheet(PDF) 55 Page - Texas Instruments

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Part # DP83620
Description  DP83620 Industrial Temperature Single Port 10/100 Mbps Ethernet Physical Layer
PDF  105 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

DP83620 Datasheet(HTML) 55 Page - Texas Instruments

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4B/5B DECODER
SERIAL TO
PARALLEL
CODE GROUP
ALIGNMENT
DESCRAMBLER
NRZI TO NRZ
DECODER
MLT-3 TO BINARY
DECODER
DIGITAL
ADAPTIVE
EQUALIZATION
AUTOMATIC GAIN
CONTROL
ANALOG
ADAPTATION
CONTROL
CLOCK
RECOVERY
(LOOPFILTER)
INPUT BLW
COMPENSATION
ADC Data
RD +/-
RXD[3:0] / RX_ER
AFE
ANALOG
AGC
ANALOG
EQUALIZER
FCO
SIGNAL DETECT
CLOCK
RECOVERY
MODULE
LINK INTEGRITY
MONITOR
DIVIDE BY 5
MUX
RX_DATA VALID
SSD DETECT
BP_SCR
RX_CLK
RX_DV/CRS
CLOCK
DP83620
www.ti.com
SNLS339C – JANUARY 2011 – REVISED APRIL 2013
Figure 7-2. 100BASE-TX Receive Block Diagram
7.2.2.1
Base Line Wander Compensation
The DP83620 is completely ANSI TP-PMD compliant and includes Base Line Wander (BLW)
compensation. The BLW compensation block can successfully recover the TP-PMD defined “killer”
pattern.
7.2.2.2
Digital Adaptive Equalization and Gain Control
The DP83620 utilizes 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.
Copyright © 2011–2013, Texas Instruments Incorporated
Architecture
55
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