AFE58JD28:

Gabriel Wang1

Part Number: AFE58JD28

1.According to the datasheet, the design of synchronization signal SYSREFP/M and SYNCP/M is as follows(picture 1&picture 2)

However,our design is as follow,（picture 3）

Then,my question is ,is there any risk?

0 Xiaochen (Sean)Xu over 4 years ago

Gabriel,

Thanks for using TI's product! if you use the simple termination, it will work, while the noise on the system may trig false event.

The datasheet recommends the common mode voltage shift to increase the noise margin. for your next hardware spin, it would be better to change that.

Thanks!

0 Gabriel Wang1 over 4 years ago in reply to Xiaochen (Sean)Xu

Genius 4725 points

1.According to the datasheet, the design of echo input signal INP/INM/ACT is as follows

However,our design is as follow,

It has been used in our past products.

Then,my question is ,Which design do you recommend？is is there any risk?

0 Xiaochen (Sean)Xu over 4 years ago in reply to Gabriel Wang1

Yes the customer's design is good, no issues. the two small caps are parasitic caps. no need to put extra caps there.

Thanks!

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