HMC1164LP5E

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Voltage Controlled Oscillators (VCOs) are a type of “oscillator” whose output frequency is directly proportional to a particular voltage supplied. This voltage is variously referred to as the “control voltage”, bias, or tuning voltage and the base frequency of the oscillator is determined by this voltage level. The HMC1164LP5E is a wideband intelligent VCO with a low-noise amplifier that is designed to provide a stable frequency output over a wide range of frequencies, while eliminating undesired oscillations and harmonics. Below is a review of its application field and working principle.

The HMC1164LP5E is specifically designed for the 5GHz frequency range, making it suitable for a variety of broadcast and communications applications such as Wi-Fi and GSM (Global System for Mobile Communications). It has a wide tuning range of 19.5-33.7GHz, providing exceptional frequency agility in mobile wireless applications. The device also includes a low-noise amplifier which provides high sensitivity and low distortion in the presence of high power networks. It has an industry-leading phase noise performance, making it ideal for applications where ultra low noise levels are required.

The HMC1164LP5E is comprised of a two-stage oscillator, an input buffer and a low-noise amplifier (LNA). The oscillator section includes a Varactor diode, voltage-tunable resonator, buffer, and mixer circuit. The varactor diode serves as the voltage controllable tuning element while the resonator serves to provide fine tuning within a wide range. The mixer circuit is used to convert the DC voltage input to an AC voltage, which is then amplified by the LNA stage to generate the desired frequency output. The input buffer is used to isolate the oscillator from the input, ensuring accurate and noise-free tuning.

The HMC1164LP5E provides several key features that make it a preferred choice for applications involving high frequency signals. It is capable of wideband frequency agility, with a wide tuning range and low frequency drift across temperatures. Most importantly, it offers excellent noise performance, with low phase noise and low jitter. Additionally, the design of the oscillator circuit requires fewer components, making it easier to integrate into a variety of designs.

In short, the HMC1164LP5E is a wideband intelligent VCO with a low-noise amplifier designed to provide a stable frequency output over a wide range of frequencies. It has a wide tuning range, excellent noise performance, and low-frequency drift, making it an excellent choice for broadcast and communications applications. The oscillator circuit design requires fewer components, making it easier to integrate. This makes it one of the preferred solutions for engineers who need to implement a VCO for their designs.

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