AT-2220(40)

Series:	--
Packaging:	Bulk
Part Status:	Active
Attenuation Value:	20dB
Frequency Range:	0Hz ~ 2.5GHz
Power (Watts):	1W
Impedance:	50 Ohms
Package / Case:	4-SMD, No Lead

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Attenuators

The AT-2220(40) is an attenuator, an electronic device that decreases the power of a signal without distorting its waveform. While the power of the signal is attenuated, the ratio between the input and output attenuation levels remain constant, allowing for a linear response across the entire frequency range. As such, the AT-2220(40) is an ideal choice for applications requiring high linearity in the presence of large signal swing or dynamic range.The AT-2220(40) is an impedance matched, variable attenuator designed to attenuate both the low end and high end of a frequency range. It features a 7-bit digital-to-analog converter (DAC) and provides a range of -4 dB FS to 0 dB FS. This range allows users to make precise adjustments to their signal strength from -4 dB FS to 0 dB FS and to accurately match the signal strength of the source with the output device.The AT-2220(40) attenuator is typically used to reduce the signal-to-noise ratio (SNR) of an audio signal while retaining its fidelity and preventing distortion. When used in audio equipment, the AT-2220(40) attenuator allows users to control the gain level of the signal, allowing them to adjust the sound quality without sacrificing sound quality.The AT-2220(40) attenuator also has a wide range of applications in RF technologies. It can be used for antenna matching, amplifier noise characterization, and even as a part of a broadband signal equalizer and booster. It can also be used to reduce the signal-to-noise ratio of RF signals, helping to reduce interference.The AT-2220(40) attenuator is made up of two integrated circuits (ICs): a 7-bit digital-to-analog converter (DAC) and a programmable resistor network. The DAC sets the reference voltage (or circuit current) from which the rest of the circuitry can draw its bias voltage or current in order to configure the resistor network. The resistor network, on the other hand, consists of multiple resistors (typically 14) arranged in a T- or Pi-shaped configuration. Through this configuration, the attenuation of the signal is determined to provide the desired output power level.The AT-2220(40) attenuator is a highly versatile and cost-effective solution for applications requiring precise attenuation adjustment. Its linearity across the frequency range makes it particularly suitable for RF technologies and audio applications alike. With its two integrated circuits, the AT-2220(40) attenuator offers precise attenuation adjustment to suit any application.

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