EXB-24AB3GR8X

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Attenuators are devices used to reduce amplitude of a signal. A typical application field of attenuators lies in the telecommunications and power transmission industries. This article will discuss EXB-24AB3GR8X, a resistive voltage-dependent attenuator designed and manufactured by Exar Corporation.

EXB-24AB3GR8X is a high-power positive voltage-dependent attenuator (VDA) available in a low-profile market-leading package. It is designed for high performance applications requiring up to 20 dB of attenuation with excellent linearity. The device is composed of three resistors. A voltage applied to the input of the device, acts on the attenuator causing a change in the resistance to reduce amplitude of a signal.

This device is highly compatible with complex communication systems. It can be used as a part-replacement for other less capable attenuators without costly board redesigns or the need for software changes to compensate for added attenuator. Plus, it is capable of providing the same attenuation values across multiple frequencies.

EXB-24AB3GR8X is available in a 28-pin SOIC package. The pins are arranged to make it easier to fit the device with its high-density feature. It offers excellent signal integrity by absorbing signal reflections. The device has an input impedance of up to 2.4 Kilohms and very low signal loss thanks to very low power density. This device is designed to be water and shock resistant, allowing it to thrive in harsh environmental conditions.

To source power, EXB-24AB3GR8X incorporates a 9 V to 24 V DC input voltage range. It is also capable of operating up to 1.1 watts of power. It supports the PWM (Pulse Width Modulation) and PFM (Pulse Frequency Modulation) modulation formats and supports a frequency range of up to 2.5 GHz. Additionally, the device delivers a typical insertion loss of 2.2 dB with an attenuation range of 0 ~ 10 dB, and 20 dB maximum with an accuracy of +-0.15 dB.

In conclusion, EXB-24AB3GR8X is a 3-resistor VDA that has a wide frequency range. It delivers outstanding signal integrity and is capable of handling up to 1.1W power input with excellent linearity at different frequencies. It is an ideal choice for application in a wide range of industries including telecommunications, power transmission and medical. The device is also water and shock resistant, making it a reliable choice in harsh environments.

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