TI中文支持网Part Number:DP83848C
你好，以太网芯片的tx有一致性测试，可以确认输出是否符合要求。那rx端有什么手段可以测试输入波形是否符合ic的要求？
zhuyuan zhao：
DP83848C: requirements for Ethernet IC RX：
Hello, the TX of Ethernet chip has consistency test, which can confirm whether the output meets the requirements. Is there any method at RX to confirm whether the input waveform meets the requirements of IC? thanks.
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Kailyn Chen：
您好，我不知您参考的是哪份资料针对TX的，这里有一份关于How to Configure DP838xx for Ethernet Compliance Testing的应用手册，针对怎样配置DP83xx系列兼容性测试，希望对您有所帮助：
https://www.ti.com/lit/an/snla239b/snla239b.pdf
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zhuyuan zhao：
Thank you for your reply. You're still talking about the near end eye diagram of TX (short line connection is described in the document). I want to know whether the signal transmitted through the network cable meets the requirements of Rx?
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Kailyn Chen：
Unfortunately, we didn't have the compliance testing documents which is about Ethernet RX.
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zhuyuan zhao：
Does the RX terminal have any requirements for the input signal? Such as jitter, amplitude?.thanks.
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Kailyn Chen：
您好,RX是输出端，一般没有对输出的要求，因为输入信号的jitter，rise/fall time, duty cycle 的失真度等决定了输出信号的质量，决定了整个收发link的阈度。
