HMC528LC4

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RF mixers refer to any device that combines two different frequency signals to produce an intermediate frequency (IF) output. The HMC528LC4 from the Analog Devices’ RF/IF family is a low-cost, low power GaAs pHEMT MMIC balanced mixer. With its low noise figure of under 3 dB, excellent input third order intercept point (IP3) of typically 27 dBm, and excellent mixer conversion loss (MCL) of typically 9 dB, this mixer is an excellent choice for wireless and other applications requiring superior performance.

The HMC528LC4 operates from 8 GHz to 12 GHz and is made using a pseudomorphic high electron mobility transistor (pHEMT) process, giving it excellent linearity and improved linearity. The device also features an ultra-low noise figure of 3 dB while offering excellent levels of isolation of 38 dB. It is ideal for wireless applications such as point-to-point radio, spread spectrum, local multipoint distribution systems, and many more.

The HMC528LC4 also features a high dynamic range of 25 dB and low input power of +1 dBm for best performance. This device also features an externally adjustable bias for easy control of IP3 and input power. The mixer has good linearity, making it ideal for cellular systems and other applications where linearity is required.

The working principle of the HMC528LC4 is quite simple. It converts one frequency into a second, typically lower, frequency by mixing the two signals. To create the IF output, the input signal is split using a coupler and balanced into two equal signals. These two signals are then combined using a pair of diodes, which rectify the signals and create an IF output. The local oscillator signal is also combined with the free-running input signal to downconvert to the required IF frequency. The input signal is then amplified by the RF amplifier, and the IF output is split into its I and Q components which are then amplified by the IF amplifiers.

The HMC528LC4 from the Analog Devices’ RF/IF family is an excellent choice for wireless applications requiring superior performance. Its low noise figure, excellent input third order intercept point (IP3), and excellent mixer conversion loss (MCL) make it suitable for point-to-point radio, spread spectrum, local multipoint distribution systems, and many other wireless applications. As wireless technology continues to evolve, the HMC528LC4 is an excellent option for meeting the requirements of today\'s powerful systems.

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