| Low-Pass
Filter |
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| • | Has a greater
gain at low frequencies |
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| – | At higher
frequencies the gain decreases |
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| • | Cutoff frequency |
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| – | Occurs when gain
drops to ½ power point |
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| – | This is 0.707 of
the maximum voltage gain |
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| • | At cutoff |
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| – | Voltage gain is –3dB;
phase angle is –45° |
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