HMC557ALC4

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An RF mixers is an electronic device that combines two signals together producing a sum and a difference frequency signal. The HMC557ALC4 is an RF mixer characterized by low conversion loss, high linearity, and wide dynamic range. It is especially suitable for applications such as a low distortion IF/ RF mixer, a downconverter, a complex low noise amplifier (LNA), a high-dynamic range receiver, or a frequency synthesizer.

A RF mixer is designed to take two different signals in the RF frequency band and “NOT mix” them, instead this device mixes together an incoming signal, such as that from an antenna on a wireless device, with the signal from a local oscillator. It then produces two outputs, one which contains the summed frequencies of the two input signals, and a second containing the difference between the two frequencies.

The HMC557ALC4 is a low conversion loss, high linearity, high dynamic range monolithic mixer designed to facilitate high-performance, low-cost receiver solutions. It is especially suited for applications involving direct reception over a wide frequency range. It operates at frequencies from DC to 18 GHz, and covers a wide IF range of 1 to 12GHz, making it ideal for mixer applications.

The HMC557ALC4 employs a dual diode / single layer active device offering superior performance over a traditional double diode active mixer. This device also features wide input and IF ports (±2 dB, referenced to 1.8GHz, DC to 18 GHz). The input and IF ports are balanced, eliminating concerns associated with single-ended inputs, and feature a low-noise amplifier (LNA) and a power switch to minimize power consumption.

The HMC557ALC4 is also designed with a high level of linearity, low input power requirements (10dBm or less), and low operating current. These attributes make the device suitable for use in a wide range of applications including up-converter, RF synthesizer, down-converter, low-distortion mixer, up-conversion transmitter, and more.

This device features a number of additional features designed to improve its performance. These include a wide dynamic range (60 dB typical, 90 dB maximum), high IIP3 (3rd-order intermodulation distortion) of 35 dBm typical, low conversion loss (6 dB typical, 12 dB maximum), high isolation in both the input and IF ports (20 dB typical, 40 dB maximum), and a low noise figure (NF) of 3 dB typical.

In addition, the HMC557ALC4 employs a dual diode / single gate device design, which offers higher linearity and improved isolation over traditional double diode active mixers. This improved performance translates to improved receiver performance in a wide range of wireless and other applications.

The HMC557ALC4 is a versatile RF mixer suitable for a variety of applications requiring low distortion and high dynamic range. It operates at DC to 18 GHz, and covers a wide IF range up to 12 GHz. It has low conversion loss, high linearity, and a low noise figure, making it ideal for applications such as an IF/RF mixer, a downconverter, a complex LNA, a high-dynamic range receiver, or a frequency synthesizer.

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