776C-20

Attenuators are electrical devices used in a variety of applications to reduce the amplitude of an electrical signal. In the field of radio frequency (RF) application, attenuators are used to limit signal strength, reduce interference, or simply reduce power in circuits. The 776C-20 attenuator is specifically designed to reduce signal levels at VHF and UHF frequencies in applications such as transmitter protection, TV broadcast receiver protection and cable TV protection, among others.

The 776C-20 is a 0 to 20dB attenuator composed of monolithic GaAs FETs. It comes in a low-cost thermally enhanced surface-mount package, and features transistor isolation with no external power supply required. The device is capable of controlling up to 10 Watt average power from 138MHz to 2GHz. It also has extremely low noise floor, low insertion loss, fast response time, and can be used in balanced and unbalanced circuits.

The 776C-20 is typically used in applications that require a high amount of isolation between input and output signals. This allows the device to operate at low supply voltages, and also improves the stability and reliability of the attenuator. In addition, the device\'s wide dynamic range, typically 40 to 60dB, allows for the reduction of high input signals with minimal distortion or noise. It can also offer high isolation, up to 85dB, depending on the frequency of the signal.

The working principle of the 776C-20 attenuator is based on GaAs FET technology. The device contains two monolithic transistors which are small, low-power, high-speed, and ideal for use in high frequency applications. The transistors are electrically connected in order to convert input signals into output signals with reduced power. By modulating the resistance between source and drain as a function of the gate voltage, the transistors are able to reduce the gain of the system and produce the desired attenuation.

The 776C-20 attenuator is well-suited for a variety of applications requiring expansion, isolation, signal reduction, and protection of expensive equipment. It can be used in applications ranging from military and government, to laboratory and industrial testing. In addition, the device is capable of providing excellent linearity, wide dynamic range, and low insertion loss. Many installations have benefited from the performance, low cost, and reliability of the 776C-20 attenuator.