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Tool/software:
Hi,
My customer want to use DS320PR810 for SAS-3 application, could you please help to provide reference circuit for SAS-3 (12G) redriver?
- MODE pin: Pin mode or I2C master/slave mode
- RXDET pin: Set RXDET= L0
- What is EQ index for 12Gbps loss table?
Thanks and Best regards,
Tiger
Hi Tiger,
We don't have a reference circuit for SAS3 applications but I can answer your questions.
- MODE pin: Pin mode or I2C master/slave mode
This is up to the choice of the customer, we have no special considerations for non-PCIe applications.
- RXDET pin: Set RXDET= L0
This makes sense to disable RX detection, to my knowledge the SAS3 protocol does not have this feature.
- What is EQ index for 12Gbps loss table?
If the data rate is 12 Gbps, I assume the data frequency is 12 GHz, therefore the Nyquist frequency (relevant to the redriver boost) is 6 GHz. We don't have table values for this frequency because it is both quite low and also not a PCIe Nyquist frequency. The customer can consult the 8 GHz measurements and assume that the activity at 6 GHz is slightly lower.
Best,
Evan Su