SKY12239-11

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Attenuators

Attenuators are devices that reduce the signal strength in an electronic system. They are used to adjust the impedance matching between components in a system, ensure that the levels of electronic signals adhere to the necessary safety regulations, as well as for noise suppression and other purposes. One type of attenuator is a simple, symmetric resistive two-pole device, such as the SKY12239-11.

SKY12239-11 Application Field and Working Principle

The SKY12239-11 is designed to serve as a low-frequency (< 500 MHz) two-pole, symmetric resistive attenuator that can be used as a limiting or amplitude-matching device in low-frequency electronic systems. Typical application fields are telecommunications, CATV, broadcast systems, and radio and television circuits.

The SKY12239-11 features an attenuation range of 10 to −20 dB, with each step corresponding to an attenuation of 1 dB. The input and output impedance are both 50 Ω. The SKY12239-11 attenuator is designed for exceptional temperature stability and high reliability. The operating temperature is −50° to +150°.

The SKY12239-11 is a resistive device, meaning that it works by dissipating the input signal as heat. This device consists of two identical active stages, each of which consists of an identical series of interlaced resistors. The entire series of resistors is connected in parallel with the input and output lines at each end. The total attenuation is determined by the ratio of the number of resistors and the value of each resistor in the series. As the input signal passes through the attenuator, a portion of it is dissipated, reducing the signal level at the output.

The SKY12239-11 is a unique device because it does not lose any of its resistance when subjected to large signal levels or temperature changes. This makes it an ideal choice for applications such as CATV, broadcast systems, and radio and television circuits where the signal levels are unpredictable and the environment is often hostile.

The SKY12239-11 attenuator is an indispensable component in low-frequency electronic systems. It is designed to provide precision attenuation in a wide range of application fields, as well as provide exceptional temperature stability and high reliability.

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