The same capacitance parameters 12dB-oct low-pass filter


Posted on Mar 28, 2007

In this circuit, A = 1, port = o.5, passive vent filter without distinction. When only care when dry l; Q = 1 / (3 - A), 12dB / oct filter of Butterworth King F0.707,4 mouth may be assumed


The same capacitance parameters 12dB-oct low-pass filter
Click here to download the full size of the above Circuit.

as follows: a = 3 ^ ci / o) = 1.s8s, according to R4 = Rs (A-1), when R3 = iok0, the roar desirable 5.8sko, with s.iko and series from 7500. In this way may have a 4-1. 585 passband gain, and then connected to the front stage or satin circuit attenuates the feedback capacitor 111. 585. 0 mM role is to inhibit the OP amplifier input capacitance due to cl produced spikes. Although the cut-off frequency fL is set a certain degree of freedom, but when fL = Loo kHz, if the set. = iok Q, then Co F160pF, OP amplifier input capacitance 0- or parasitic capacitance will have an impact, so G. From must reduce 5 ~ lOpF calculated values. In addition, OP amplifier gain can be replaced by a single wide band products.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Morse Code Alarm Clock
Arduino How to control a Servo
Handy Board Software
Liquid-Crystal Display (LCD) Tester
3-Band Active Audio Tone Control Circuit
brake lights monitor
Frequency counter hardware keys schematic
Thyristor - linking arm rectifier module three-phase half-controlled bridge rectifier circuit
Three reverse brake circuits to operate energy



Top