| Electronics > Projects, Designs, and Technical Stuff |
| 2.2uF C0G/NP0 |
| (1/3) > >> |
| fabiodl:
I am developing a board around the TI pcm5122. The datasheet at page 66 reports that all caps should be 2.2uF C0G. I cannot find any caps with that dielectric/temperature coefficient on Digikey with capacitance over 560nF. Do bigger C0G caps exist? What/Where should I search for? |
| langwadt:
use 4? |
| DaJMasta:
I'd be sort of surprised if they do, I'm actually surprised you can find a 500nF C0G, the ones I'm used to seeing top out in the single digits. Why not a film cap instead? |
| Jay_Diddy_B:
Hi, I think is a an error the correct value is 2.2nF They use 2.2nF in other places in the documentation. 2.2nF and 470 \$\Omega\$ is 153kHz 2.2uF and 470 \$\Omega\$ is 153 Hz low pass filter. Jay_Diddy_B |
| duak:
Wow, I'm surprised there are even 560 nF parts. I think it's a mistake. The output filter should be 2.2 nF C0G as per the schematic, while the 2.2 uF for the charge pump can be an X7R. Here's a link to someone who thinks the same: https://electronics.stackexchange.com/questions/386216/pcm512x-charge-capacitor-value |
| Navigation |
| Message Index |
| Next page |