Part Number: DS80PCI402
My customer is wondering working theory of limiting and non-limiting redriver,
Can you help to specify the working theory and difference?
It will be much better if there are block for the description.
Great thanks for your help.
A limiting redriver will have relatively high wideband voltage gain from input to output. The voltage gain will be greater than 10:1, so even a very small 100mV input swing could be output at 1000mV amplitude.
A non-limiting redriver will have a vey small voltage gain from input to output. The voltage gain will be approximately 1:1, so a very small 100mV input swing would still be seen as a 100mV output.
The non-limiting redriver is more transparent to analog voltage information. This allows the system PCIe receiver connected to the redriver output to better optimize the link training process. A non limiting redriver also works better if the system topology demands that it is placed close to the system PCIe Tx.
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