DS90UB925Q-Q1: EMI issue

David Yang

Part Number: DS90UB925Q-Q1
Other Parts Discussed in Thread: DS90UB926Q-Q1

Tool/software:

Hi,

The customer has the following questions:
1. Does the DS90UB925Q-Q1 support spread spectrum modulation (SSC)? The datasheet mentions that the DS90UB925Q-Q1 supports SSC.

2. If spread spectrum modulation is not implemented on the DS90UB926Q-Q1, are there any other feasible EMI improvement solutions you can recommend?

Thanks & Best regards

2 months ago

0 Aaron Heng 1 month ago

TI__Mastermind 37790 points

Hi David,

The datasheet indicated that it supports the oscillator with SSC not the device itself.

Aaron

0 David Yang 1 month ago in reply to Aaron Heng

Intellectual 750 points

Hi Aaron,

If spread spectrum modulation is not implemented on the DS90UB926Q-Q1, are there any other feasible EMI improvement solutions?

Thanks & best regards

0 Aaron Heng 1 month ago in reply to David Yang

TI__Mastermind 37790 points

Hi David,

The best method is to use high speed best practice layout techniques. For example, you want to sandwich the high speed traces such as FPD-Link and OLDI signals.

Aaron

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DS90UB925Q-Q1: EMI issue