DS32ELX0124: About EQ boost control setting

tsuyoshi tokumoto

Part Number: DS32ELX0124
Other Parts Discussed in Thread: DS32ELX0421

Hi team,

I have a question about DS32ELX0124 data sheet RevK.
The EQx Boost Control setting is described as follows
on the data sheet page 27.

    EQ0 Boost Control
       000:OFF
       x10:Low
       x01:Mid
       x11:High

    EQ1 Boost Control
       000:OFF
       x10:Low
       x01:Mid
       x11:High

I think the setting values of Low and Mid are opposite.
Are the setting values on the data sheet correct?

Best regards.
Tsuyoshi Tokumoto

over 8 years ago

0 Ryan Hashimoto over 8 years ago

TI__Intellectual 1635 points

Hi Tokumoto-san,

Thank you for highlighting your concern on the DS32ELX0124 datasheet. Please allow me a few days to contact my design team and review the digital design to confirm the EQ Boost Control Settings. I will provide an update as soon as we are able to review the design.

Regards,
Ryan

0 tsuyoshi tokumoto over 8 years ago in reply to Ryan Hashimoto

Expert 2630 points

Hi Ryan-san,

　I appreciate your prompt response.
　I understand your situation well.
　I am looking forward to your reply.

Thank you and best regards.
Tsuyoshi Tokumoto

0 tsuyoshi tokumoto over 8 years ago in reply to Ryan Hashimoto

Expert 2630 points

Hi Ryan-san,

I am sorry to rush you, but I would be grateful
if you could please reply to my query.

Thank you and best regards.
Tsuyoshi Tokumoto

0 Ryan Hashimoto over 8 years ago in reply to tsuyoshi tokumoto

TI__Intellectual 1635 points

Hi Tokumoto-san,

I have discussed this with the design team, and have been informed that the datasheet settings are correct. During your testing of the device, are you seeing different performance than is specified in the datasheet?

Regards,
Ryan

0 tsuyoshi tokumoto over 8 years ago in reply to Ryan Hashimoto

Expert 2630 points

Hi Hashimoto-san,

Thank you very much for your reply.

When my customer evaluated the communication between DS32ELX0421
and DS32ELX0124 on his prototype,the setting Low(x10) was able
to communicate with a longer cable than the setting Mid(0x01).

From the above,I assumed that the setting values of Low and Mid are opposite.

I need to explain the cause of this phenomenon to him.

I would like to ask your advice on this phenomenon.

Thank you and best regards.
Tsuyoshi Tokumoto

0 tsuyoshi tokumoto over 8 years ago in reply to Ryan Hashimoto

Expert 2630 points

Hi Hashimoto-san,

I shared a additional information with you.

Evaluation results

EQ0 Boost Control Communication result
000:OFF --------------> NG
x10:Low --------------> OK
x01:Mid ---------------> NG
x11:High --------------> OK

If you need any additional information please let me know.

Thank you and best regards.
Tsuyoshi Tokumoto

0 tsuyoshi tokumoto over 8 years ago in reply to Ryan Hashimoto

Expert 2630 points

Hi Hashimoto-san,

I'd appreciate it if you could give me any comments.

Thank you and best regards.
Tsuyoshi Tokumoto

0 Ryan Hashimoto over 8 years ago in reply to tsuyoshi tokumoto

TI__Intellectual 1635 points

Hi Tokumoto-san,

I have re-visited this topic with the design team based on your additional data. We have not been able to locate the design database to confirm if the low and mid settings are incorrect in the DS32ELX0124 datasheet, but the senior designer who worked on this project believes the datasheet may be incorrect. Unfortunately, I will not be able to make an update to the datasheet until I can verify this in the database. My recommendation is to use the setting that provides the best system performance during your testing, based on the results this would be either 0x10 or 0x11.

Regards,
Ryan

0 tsuyoshi tokumoto over 8 years ago in reply to Ryan Hashimoto

Expert 2630 points

Hi Hashimoto-san,

　Thank you very much for your re-confirming.
　I shared your reply with my customer.

　I'd appreciate it if you could contact me when you have any additional
　information about this issue.

Thank you and best regards.
Tsuyoshi Tokumoto

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DS32ELX0124: About EQ boost control setting