SKY12215-478LF

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Introduction

SKY12215-478LF is an RF Switches manufactured by Skyworks Solutions, Inc., a global leader in the production of highly-reliable and sophisticated radio frequency (RF) components for use in mobile communications and other applications. It is designed to provide reliable and efficient switching and control of radio frequency signals in a wide range of applications.

Application Field

The SKY12215-478LF is a high-performance RF switch designed for use in applications requiring reliable and efficient signal switching and control, such as test and measurement equipment, radio frequency identification (RFID) equipment, mobile devices, radar systems, communications systems, medical equipment, and automotive applications. This component operates from a supply voltage of -8V to +8V, providing low insertion loss, fast switching speed, and excellent port-to-port isolation. It is built with a low-pass filter for rejection of higher frequency harmonic distortion, and its radio-frequency performance is characterized up to 40 GHz.

Working Principle

The SKY12215-478LF is a single-pole double throw (SPDT) RF switch, which relies on reactive loading to achieve excellent performance characteristics. The RF switch comprises two semiconductor parts, the switch field effect transistor (Extron FET) and an integrated resistor (Integrator Resistor). The Extron FET acts as the primary switch and the Integrator Resistor provides the reactance necessary to achieve the desired switching behavior. As input signals are applied to the Extron FET, its gate voltage is modified and this in turn controls the current flow through the resistor, thus controlling the conduction losses that occur when signals pass through the switch.

The SKY12215-478LF provides two ports of operation, a normally-open (ON) port and a normally-closed (OFF) port. When the switch is in the ON state, signals are routed directly from the input to the output without attenuation. When in the OFF state, signals are routed through the Integrator Resistor and attenuated by the resistor’s low resistance value This integrated resistor model also provides excellent port-to-port isolation, eliminating crosstalk and maintaining high signal integrity.

Conclusion

The SKY12215-478LF is an RF switche capable of exceptional signal integrity and performance in a wide range of applications. This component features a low supply voltage, fast switching speed, and excellent port-to-port isolation and also provides a low-pass filter for harmonic distortion rejection. It is ideal for use in applications such as test and measurement equipment, RFID equipment, medical equipment, radar systems, mobile devices, and automotive applications.

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