Cable TV 75Ohm F Connectots CATV Hpf High Pass Filter

Description:

These high performance high pass filters exhibit little loss within the pass band while reject maximum signals from below the cut off frequency stop band. They require no external components or adjustments.

Features:

1. High return loss
2. Low harmonic distortion
3. Plug-in ready to use
4. Factory tuned frequency or customer specified

Specifications：

typical application

Many audio analyzers use this circuit as a bandpass filter to select the signals in different frequency bands, and use the LED to indicate the magnitude of the signal on the display. The center frequency of this active bandpass filter, the voltage gain at the center frequency fo Ao=B3/2B1, the quality factor, the 3dB bandwidth B=1/(п*R3*C) can also be determined according to the design Q, Fo, Ao value, to find the parameter values of each component of the band pass filter. R1 = Q / (2 пfoAoC), R2 = Q / ((2Q2-Ao) * 2 пfoC), R3 = 2Q / (2 пfoC). In the above formula, when fo=1KHz, C takes 0.01Uf. This circuit can also be used for general frequency selective amplification. Active bandpass filter circuit

This circuit can also be used with a single supply, simply biasing the positive input of the op amp to 1/2V+ and the lower end of resistor R2 to the positive input of the op amp.

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