AF122-FR-07115KL

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Resistor Networks, Arrays are used in a wide range of electronic applications .The AF122-FR-07115KL is a good example of a resistor network. It is a form of active low-pass filter that features adjustable corner frequency and gain. The main components of this type of network are resistors and capacitors.

Working Principle

In the AF122-FR-07115KL network, the filters are made up of seven passive elements, three capacitors (C1, C2, C3) and four resistors (R1, R2, R3, R4). The two positive terminals of the network are connected to a single amplifier input, and the negative terminals are connected to ground. A pair of parallel capacitors, C1 and C2, form a low-pass filter circuit, while the other capacitors C3 and the four resistors form the gain control circuitry.

The primary function of the filters in the AF122-FR-07115KL network is to reduce noise, attenuate frequencies and maintain signal integrity. The four resistors in the network are used to set the corner frequency; the frequency at which the filter rolls off signals. The corner frequency increases as the resistance values are increased, and decreases when the resistance values are decreased. The capacitors in the network are used to set the gain of the filter, increasing the gain when the capacitance values are increased, and decreasing it when the capacitance values are decreased.

When the frequency of the input signal is within the corner frequency range, the signal passes through the filter with minimal attenuation. When the signal frequency is higher than the corner frequency, the filter will begin to attenuate the signal and roll off the higher frequencies. The gain of the filter is also set by the capacitance values; higher capacitors provide more gain while lower capacitors provide less gain. The higher the gain settings, the more the signal is amplified, while the lower the gain settings, the less the signal is amplified.

Applications

The AF122-FR-07115KL network is primarily used to protect sensitive circuits from RF interference, limit low-frequency signals, and act as a low-pass filter in audio systems. The adjustable corner frequency and gain control features of the network make it ideal for use in applications that require a wide range of different frequency response options.

The AF122-FR-07115KL network can be used to reduce interference from high-frequency signals, which can degrade the signal-to-noise ratio of an audio system. It can also be used to reduce low-frequency hum, which can be caused by ground loops or power supply noise. The network can also be used as a general-purpose low-pass filter for limiting low-frequency signals.

In addition, the network can be used in radio frequency applications, such as AM and FM radio broadcasting. The adjustable corner frequency and gain control features allow for the tuning of the radio signals for a wide range of different frequencies. The network can also be used to reduce noise in wireless transmission systems, such as Bluetooth and Wi-Fi.

The AF122-FR-07115KL network is a popular choice for many electronic projects because of its adjustable corner frequency and gain control. It is a reliable and easy to implement solution for a wide range of different applications.

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