HMC524LC3B

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RF mixers are one of the most important active components used in radio frequency (RF) systems. They are used to convert an RF signal from one frequency to another or to add two signals together. The HMC524LC3B is a hybrid GaAs MMIC active double balanced mixer which operates from 10MHz to 20GHz. It is designed to operate from a single 5V supply and has a nominal conversion loss of 7.0dB and IP3 of +24dBm.

The HMC524LC3B features a single ended input ports in both TX and LO paths. This device is designed to cover a broad range of frequencies with low conversion loss and noise figure. It also possesses linearity and dynamic range suitable for most applications. The HMC524LC3B is specified over the entire operating temperature range of -40°C to +85°C. It is packaged in a lead-free 5-lead SOT-89 package.

The HMC524LC3B is typically used in applications such as cellular handsets, disk drive/CD-ROM recorders, instrumentation, and microwave point-to-point links. It can also be used in up/down conversion and frequency multiplying circuits for wireless systems.

The working principle of an RF mixer is based on the process of signal mixing. The process involves mixing two signals, one which contains a high frequency (RF) signal, and another of the low frequency (LO) signal. The LO signal modulates the RF signal and the resulting output is a signal with both the frequency components. This type of arrangement is known as a double-balanced mixer. It contains four diode-connected FETs arranged in pairs and is switched on and off by the LO signal.

The HMC524LC3B is designed to be used in double balanced mixer circuits. By applying a LO signal and an RF signal to the double balanced mixer, the high frequency component is modulated by the LO signal and forms the output signal. The RF signal is converted to the sum and difference of the original signal and the LO signal. The high frequency component is affected by the LO signal, while the low frequency component remains unaffected. By carefully choosing the LO signal to the mixer, only the component of the signal with the desired frequency is available at the output.

The HMC524LC3B provides excellent performance with low conversion loss and noise figure over a wide bandwidth of frequencies. It is designed for operation from a single 5V supply, making it ideal for low power applications. Its excellent linearity and dynamic range also make it suitable for a wide range of applications, including cellular handsets, disk drive/CD-ROM recorders, instrumentation, and microwave point-to-point links, up/down conversion and frequency multiplication for wireless systems.

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