Description: First, the design requirements: 1 • cutoff frequency fH3d = 1kHz
2 • -of-band octave attenuation rate of less than-30dB/10
Second, the overall program discussion: Second-order RC active filter function is so that a certain frequency range of signals, inhibit or rapid attenuation of signal within this range, common circuit voltage-controlled voltage source (VCVS) circuit and an infinite gain Multiple feedback (MFB) circuit, this design uses a voltage-controlled (VCVS) circuit, which op amp is the path input, input impedance, high input impedance is very low, its advantage is that the circuit performance is stable, easy to adjust the gain
To Search:
- [2r1] - 1, using CVI software platform designed
File list (Check if you may need any files):
黄彦20062338模电EDA.doc
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