SMV1248-079LF

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Variable capacitance diodes are electronic components based on solid-state semiconductor technology. They are known by several names including varicaps, varactors, and occasionally, klystrons. The SMV1248-079LF is a varicap diode specifically designed for use in applications where high tuning range is needed. It has low capacitance and high tuning range, making it ideal for applications such as frequency or phase locking, or those needing high linearity.

Application Field

The SMV1248-079LF is a highly specialized device designed for use in radio-frequency applications. It is suitable for a wide range of RF applications, including cellular/PCS and wireless local area networks (WLANS). The SMV1248-079LF offers excellent broadband performance and wide tuning ranges, making it an ideal choice for wireless infrastructure applications. Additionally, because of its low capacitance and high tuning range, it is suited for use in cellular/PCS repeaters and other frequency and phase locking applications.

Working Principle

Variable capacitance diodes like the SMV1248-079LF are based on a simple principle: as the voltage applied to the diode changes, so does the amount of capacitance created by the device. This is a quantum effect, where the voltage applied to the diode affects the atomic structure of the semiconductor material, creating a variable capacitance effect.As the voltage is increased, the barrier for electrons in the semiconductor material is lowered and more capacitance is created. Similarly, when the voltage is decreased, the barrier is raised and less capacitance is formed. By manipulating this effect the device can be used to alter the frequency of the signal used in applications like frequency or phase locking.

The SMV1248-079LF is designed to achieve a wide tuning range, up to 50MHz of bandwidth, with a small capacitance. This makes it suitable for a wide range of RF applications including cellular/PCS and WLANs. Additionally, the device has a low operating noise figure, which makes it ideal for use in low noise receivers.

Conclusion

The SMV1248-079LF is a specialized varicap diode designed for use in radio-frequency applications. It is suitable for a wide range of RF applications, including cellular/PCS and WLANs. The SMV1248-079LF offers excellent broadband performance and wide tuning range, making it ideal for wireless infrastructure applications. Additionally, its low capacitance and high tuning range makes it suited for use in cellular/PCS repeaters and other frequency and phase locking applications.

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