| Electronics > Projects, Designs, and Technical Stuff |
| 2.2uF C0G/NP0 |
| << < (3/3) |
| MagicSmoker:
Since the OP's question has been answered, note that there are C0G caps rated for up to 330n and 100V that only cost $5.78 on Mouser: https://www.mouser.com/ProductDetail/KEMET/C2220C334J1GACTU?qs=sGAEpiMZZMs7ZEmUmaUL0%252BHfn%252BkysyX5xyIpm1WOce8%3D |
| ZaphodBeeblebrox:
--- Quote from: blueskull on October 28, 2019, 04:10:10 am ---Replace with polymer caps. Only better, nothing worse, at least for audio DC blocking. --- End quote --- There is this thing about leakage current you might want to consider... |
| fabiodl:
It is "funny" that in their schematic/bom they use x7r and not c0g even for the low pass output filter |
| floobydust:
It's better C0G as they have lower dielectric absoption, critical in say a reconstruction filter, but not as much here because the DAC's output impedance and 470R resistor work around it. Signal distortion from high-K ceramic capacitors Maxim AN4333 only looks at X7R, Y5V and the low freq. <300Hz gets badly distorted. The eval boards are usually to play with developing S/W and few have test results showing it actually achieves 24-bit resolution with low noise. +3.3VA also powers the DAC IC's VD digital portion which might not be ideal. |
| Navigation |
| Message Index |
| Previous page |