M3933/30-31S

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Attenuators are devices that reduce the level of an input signal. They are commonly used in RF and audio applications. The M3933/30-31S attenuator is designed for use in systems where high power is required but signal attenuation is not. The device is designed for operation in the 30 to 31 MHz frequency range.

One of the most important applications for M3933/30-31S is in cellular base station systems, where it is used to accurately attenuate high-power signals in order to prevent overload of the receiver and limit interference from the transmitters. In addition, it is also used in various test and measurement applications, and to calibrate signal levels in two-way radio communication systems.

The M3933/30-31S is a voltage-variable attenuator, which means that the attenuation is dependent on the control voltage applied to the attenuator. Its attenuation range is from 0 dB to 99.5 dB, with a step size of 0.5 dB. The attenuation is also adjustable in linear increments from 0.5 dB up to 98 dB. The voltage input is provided through an 8-bit digital input, and the attenuation is controlled via a digital potentiometer.

The device is also equipped with an over-temperature protection circuit, which will protect it from damage due to excess heat. The operating temperature range is between -40 and +85 degrees Celsius. It is powered by a single-voltage supply of +5V, and the total power consumption is approximately 72 mW.

The M3933/30-31S is a highly versatile and reliable attenuator that is designed to meet the demands of wireless communication systems. The attenuation levels can be precisely controlled, and its wide frequency range and over-temperature protection make it ideal for use in base station and other two-way radio applications where high power is required.

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