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PDP83TG720SWCSTQ1 Datasheet(PDF) 40 Page - Texas Instruments

Part # PDP83TG720SWCSTQ1
Description  DP83TG720S-Q1 1000BASE-T1 Automotive Ethernet PHY
PDF  199 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PDP83TG720SWCSTQ1 Datasheet(HTML) 40 Page - Texas Instruments

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TP1
TP2
Trace characteristics:
Zo = 50Ÿ (±15%)
Max. length < 5inch
MAC RGMII TX
PHY RGMII TX
Figure 7-15. RGMII TX Requirements
RGMII-RX Requirements
• RGMII RX signals should be routed on board with control impedance of 50Ohm +/-15%.
• Max routing length should be limited to 5inch for better signal integrity performance.
• No damping resistors should be added at TP3/TP4, in Figure 7-16, as that will impact signal integrity of RX
signals.
• Figure 7-16 shows a RGMII interface requirements for RX* signals. MAC RGMII driver output impedance
should be 50Ohm+/-20%.
• Signal Integrity at TP3 and TP4, in Figure 7-16, should be verified with IBIS model simulation and ensured
conformance to following requirements:
– At TP4, signal should meet rise/fall time of 1ns (20-80%) of signal amplitude.
– Rise/fall time should be monotonic between VIH/VIL level at TP4.
TP3
TP4
Trace characteristics:
Zo = 50Ÿ (±15%)
Max. length < 5inch
PHY RGMII RX
MAC RGMII RX
Figure 7-16. RGMII RX Requirements
DP83TG720S-Q1
SNLS604 – SEPTEMBER 2020
www.ti.com
40
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