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DRV8705-Q1: Spread spectrum

Part Number: DRV8705-Q1

Hi Team,

I found it is said DRV8705 can support spread spectrum to reduce EMC. 

Can I know where is the spread spectrum apply on? On charge pump switcher?

And may I know how much different between turn on/off the spread spectrum, and will it has any effect on the device behavior?

I saw there is a fDVDD=14.25MHz in the table, is there a internal oscillator inside the device?

BR

Frank