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SN75DP139: Power’s supply noise

Part Number: SN75DP139

Hi

 

I have a SN75DP139 datasheet (Rev. JULY 2017).

 

Regarding power’s supply noise ,

 

Q1. What is allowable power’s supply noise for VCC pins (2, 11, 15, 21, 26, 33, 40, 46 pin) ?

     (ex: 50mVpp max)

 

Best Regards,

Chiba.