SMV2020-079LF Discrete Semiconductor Products

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The SMV2020-079LF is a type of diode that functions as a variable capacitance or a varicap. A varicap is an efficient and cost-effective way to achieve electrical tuning over a wide frequency range. This low-profile, high-performance varicap comes with an HBT/GaAs heterojunction bipolar transistor to create an active varicap. It is designed to work with a wide range of frequencies and can be used in a variety of applications.

Application Field

The SMV2020-079LF is a popular choice for a wide variety of applications, including satellite and mobile radio receivers, FM radio, TV receivers, DAB receivers, and any other radio frequency applications that require wide tuning range and high frequency stability. It is suitable for a range of mid- and high-power applications and has a low noise performance. It can also be used in oscillators and voltage controlled oscillators (VCOs), as well as active antenna amplifiers, television tuners, and UHF receivers.

Working Principle

The SMV2020-079LF uses a varicap diode to provide the necessary voltage-controlled membrane capacitance necessary for wide-ranging frequency applications. A varicap diode is a semiconductor diode structure that exhibits capacitive reactance to electric fields. When a voltage is applied to the varicap, the electric field modulates the depletion layer of the diode, resulting in capacitance changes that vary with the applied voltage. This enables the frequency of the device to be controlled by the applied voltage. The HBT/GaAs heterojunction bipolar transistor also provides the necessary active control for the varicap.

The SMV2020-079LF comes with a wide variety of features and benefits to support the demanding needs of the application field. It has high linearity, high lifetime stability, low noise performance, and low phase noise. It also has a wide but sharp tuning range, enabling it to cover a wide range of frequencies. Further, the device also has a high Q-factor and is fully capable of supporting up to 1 W of power.

Conclusion

The SMV2020-079LF is an advanced variable capacitance varicap which is designed to support a range of mid- to high-power applications and have wide tuning range. It combines an HBT/GaAs heterojunction bipolar transistor and a varicap diode, which are used together to create the necessary active control of the varicap. The device has a number of advantages and features such as high linearity, long lifetime stability, low noise, low phase noise, and high Q-factor, making it suitable for a range of radio frequency applications. As such, the SMV2020-079LF is a reliable and cost-effective option for those seeking efficient electrical tuning.

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