LMH6401: 'DNP' capacitors parallel with the PI attenuator resistors in the TIDA-00826 reference design schematics

diverger

Part Number: LMH6401

In the TIDA-00826 reference design schematics, there are some 'DNP' capacitors in parallel with the PI attenuator resistors. What's the purpose? When we need populate these capacitors?

Thanks.

over 5 years ago

0 kai klaas69 over 5 years ago

Guru 140200 points

Hi,

such caps can often be seen in TI's reference designs. Usually, they are for testing purpose only.

Kai

0 Jacob Freet over 5 years ago in reply to kai klaas69

TI__Expert 7875 points

Hi,

Kai's statement above is correct. We often include extra spots for bypass caps or additional components for testing or further adjustment. You do not need to include them, but it is often a good idea to include extra spots for components to aid in circuit debug.

Regards,

Amplifiers

Amplifiers forum

LMH6401: 'DNP' capacitors parallel with the PI attenuator resistors in the TIDA-00826 reference design schematics