TLV320ADC3100: unused input pins

George Zhao

Hi team,

Customer only uses IN3L and IN2L, just to make sure they need to connect a capacitor from IN2R/IN3R to ground, right? Can they use 0.22uF?

What if they leave these 2 pins open?

Thanks!

George

over 5 years ago

0 Carson Allen over 5 years ago

TI__Genius 13610 points

Hey George,

IT is recommended to place a capacitor to ground these unused pins to prevent issues with noise. What are the other capacitor values the customer is using?

Best,

Carson

Low Power Audio Applications

0 George Zhao over 5 years ago in reply to Carson Allen

TI__Intellectual 1635 points

Hi Allen,

Customer is using 0.47uF, but they met shortage of this capacitor in supply, can they change to other values like 0.22uF?

+1 Carson Allen over 5 years ago in reply to George Zhao

TI__Genius 13610 points

Hi George,

Yes, the 0.22uF should be fine.

Best,

Carson

Audio

Audio forum

TLV320ADC3100: unused input pins