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AM5728: External capacitors

Guru 10235 points
Part Number: AM5728

Hello, TI Experts,

 

Our customer sent us a question about External capacitor Spec. for CAP_VBBLDO* and CAP_VDDRAM* of AM5728.

We found the description in Datasheet(SPRS953C) as below;

- Table 4-34. Power Supply Signal Descriptions

   "This pin must always be connected via a 1-μF capacitor to vss."

 

And we also checked two EVM schematics and BOMs as below;

- http://www.ti.com/tool/tmdxidk5728

   0402ZD105KAT2A(Capacitor 1uF 10V Ceramic 10% 0402) are connected to those pins;

- http://www.ti.com/tool/tmdsevm572x

   C0603X5R0G105M030BC(0201,1UF,4V,X5R,20%) are connected to those pins;

 

Question:

Are there any recommendation to decide those external capacitors for CAP_VBBLDO* and CAP_VDDRAM* like below spec.?

- Voltage

- Tolerance

 

They would like to use 20% tolerance capacitors to those pins.

Are there any notice or comment?

 

Best regards,