I want to filter a signal in a way that lets high frequencies through, in the region of 64 kHz. I've already done the work and created a list of potential candidates. This list consists only of components that are in my inventory at the moment.
The following R-C combinations would all serve as a high-pass filter where if the input voltage is 1V the output would be below 0.1 V at a frequency of 1000 Hz and above 0.99 V at a frequency of 100000 Hz:
100000-150pF, 12-1uF, 120-100nF, 1200-10nF, 12000-1nF, 120000-100pF, 1200000-10pF, 15-1uF, 150-100nF, 1500-10nF, 15000-1nF, 150000-100pF, 1500000-10pF, 180-68nF, 1800-6.8nF, 18000-680pF, 220-68nF, 2200-6.8nF, 22000-680pF, 27-470nF, 270-47nF, 2700-4.7nF, 27000-470pF, 270000-47pF, 33-470nF, 330-47nF, 3300-4.7nF, 33000-470pF, 390-33nF, 3900-3.3nF, 39000-330pF, 470-33nF, 4700-3.3nF, 47000-330pF, 56-220nF, 560-22nF, 5600-2.2nF, 56000-220pF, 560000-20pF, 68-220nF, 680-22nF, 6800-2.2nF, 68000-220pF, 680000-20pF, 82000-150pF
Let's pick two at random and see which one would be a better choice: 1200-10nF vs 68000-220pF
This is 1200O and 10nF:
This is 68000O and 220pF:
All of the combinations in the above list show more or less the same line.
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