Position: Index > Filter Circuit >
  • LOW_PASS_DIGITAL_FILTER

    2017-02-23 03:24:4079

    Used to retrieve pulse train data from noisy signal line. Filtering is achieved with SN7400 quad two-input NAND gate, SN7413 dual four-input Schmitt tr...

  • 100_kHz_high_pass_2_pole_Butterworth_filter

    2017-02-23 01:08:2062

    This circuit uses an HA-2544 video op amp (Fig. 3-29) to form an active 100-kHz filter. Other frequencies can be selected using the equation. Figure 7-...

  • Active dual two-stage bandpass filter circuit

    2017-02-22 23:04:4968

    The active dual two-stage bandpass filter circuit is as shown in the figure, the center frequency is 1kHz, the quality factor Q=50, the gain Kv=100 (eq...

  • 4_pole_Butterworth_filter

    2017-02-22 20:26:5665

    With the values shown, this circuit provides a 1-kHz 4-pole Butterworth filter function, with a direct-coupled input and outputs. Raytheon Linear integ...

  • electronic filter circuit

    2017-02-22 20:19:1064

    BG1 and BG2 form mulriple pipe.This circuit adds the filter element to the base of mulriple pipe which is different from others. The magnification coef...

  • Using operational amplifier low-pass filter circuit diagram

    2017-02-22 19:22:2762

    Using operational amplifier low-pass filter circuit diagram as shown:Let R1 = R2, then the gain of the low frequency range 1 (= 0db)....

  • The symmetrical double T circuit to improve the notch filter

    2017-02-22 18:39:0273

    Figure 1 is an example of the symmetrical double-T circuit. Under careful observation, we found that it is circuit synthesis of low-pass filter and hig...

  • Universal_state_space_filter

    2017-02-22 17:42:1163

    This circuit uses all four sections of a quad op-amp to form a universal state-space filter. Raytheon Linear integrated Circuits, 1989, p. 4-265....

  • TWIN_T_400_CPS_FILTER

    2017-02-22 16:59:2067

    Used with modulators lo increase signed-noise ratio. Filter is tuned to 400 cps, and eliminates other frequencies by feeding them back. Q of fiber is 6...

  • High_Q_notch_filter

    2017-02-22 16:13:1763

    This circuit uses an LM110 connected to form a basic high-Q notch filter. The frequency range is determined by the values of R1 and C1, as shown by the...

  • High_pass_active_filter

    2017-02-22 15:44:3265

    This circuit uses an LM102 connected to form a basic high-pass filter (input capacitors in series and input resistor in parallel). The values are for 1...

  • HIGH_PASS_FILTER

    2017-02-22 14:58:3163

    This high-pass filter will attenuate AM stations by 40 dB. Its low-frequency cutoff is about 2.2 MHz. This filter is useful for SW listening in areas o...

  • Adjustable_Q_notch_filter

    2017-02-22 13:23:0776

    This circuit uses two LM100s to form a 60-Hz notch filter with adjustable Q(set by adjustment of R4). Other frequencies can be selected using the equat...

  • 455_kHz_NARROW_BAND_IF_FILTER

    2017-02-22 13:06:2465

    This filter uses five 455-kHz ceramic resonators. The impedance is 330Ω, the bandwidth is 800 Hz, and the ultimate rejection ≥60dB. The ceramic reso...

  • Motion Filter Effect

    2017-02-22 13:00:1664

    This circuit will controls the initial frequency and controls how much the envelope follower responds to the input signal. An envelope follower/filter ...

  • TUNABLE_BANDPASS_FILTER

    2017-02-22 12:35:2870

    One of the difficulties in the design of higher-order tunable bandpass filters is achieving correct track-ing of the variable resistors in the RC netwo...

  • Motion Filter Effect

    2017-02-22 12:20:3964

    This motion filter effect circuit will controls the initial frequency and controls how much the envelope follower responds to the input signal. An enve...

  • Tube full-wave rectified and filtered circuit Diagram

    2017-02-22 12:20:1461

    Tube full-wave rectified and filtered circuit Diagram shown as follow:...

  • Elliptic_filter_

    2017-02-22 12:03:5878

    With the values shown, this circuit provides a 4th-order 1-kHz elliptic filter (with 4 poles and 4 zeros). The equations are given for other frequencie...

  • VARIABLE_BANDPASS_AUDIO_FILTER

    2017-02-22 09:59:0271

    This circuit is a variable audio bandpass filter that has a low cutoff variable from about 25 Hz to 700 Hz and a high cutoff variable from 2.5 kHz to o...

  • CERAMIC_FILTER_DRIVE

    2017-02-22 09:23:5763

    National LM3011 gain block provides three differential stages and current-source output suitable for driving 300-ohn,ceramic filter in IF amplifier of ...

  • TUNABLE_AUDIO_NOTCH_FILTER_CIRCUIT

    2017-02-22 08:11:42107

    The circuit requires only one dual-ganged potentiometer to tune over a wide range ; if necessary over the entire audio range in one sweep. The principl...

  • BandPass Filter circuits

    2017-02-22 06:26:2863

    This bandpass filter is in fact a combined high- and lowpassfilter. The first stages are a highpass (f70MHz) and the last stages a low pass (f180MHz). ...

  • -18dB/octave Active Low-pass Filter Circuit (RC4558DN)

    2017-02-22 04:56:0071

    The -18dB/octave active low-pass filter circuit is shown in the figure. This circuit consists of -6dB passive filter and -12dB/octave active filter and...

  • TC909OBN9 digital hang-shaped filter-type Y/C separation cir

    2017-02-22 04:32:2662

    The TC909OBN9 is designed as one kind of digital hang-shaped filter-type Y/C separation circuit which is produced by the TOSHIBA company, and this devi...

  • Low frequency high frequency filter circuit diagram

    2017-02-22 04:23:5064

    Figure (a) circuit is composed of RC filter with two cascaded parts. It is connected a isolation amplifier between them(such as emitter-follower). Low ...

  • DIODE_SWITCHED_IF_FILTER

    2017-02-22 04:10:4570

    Used in 1.8-2 MHz communication receiver having wide dynamic range 1N914 diodes select collins mechanical filter F455FD-04 FL3 (400-Hz bandwidth) o...

  • 2 ~ 33MHz band-pass filter circuit formed by low-pass and hi

    2017-02-22 03:30:0463

    The filter shown in the figure is not so beautiful than the above on but with equally effectiveness. This approach is to combine the low-pass part and ...

  • LATTICE_COUPLING_OF_DOUBLE_TUNED_FILTER

    2017-02-22 02:17:4163

    Permits adjusting coupling between input and output resonant circuits to com pensate for stray reactances and variations in component values. Used in 3...

  • ZOBEL_BAND_ELIMINATION_FILTER

    2017-02-22 02:13:5562

    Both examples give at least 40 db attenuation between 8,410 cps and 11,150 cps, for 600-ohm source and load resistances.-K.Lichtenfeld, Method for ...

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