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RF Amplifiers- SKY66189-11 application field and working principle

The SKY66189-11 is a high linearity RF amplifier integrated circuit providing up to 31dB of gain with up to 2V supply voltage. The SKY66189-11 is designed for a wide range of applications, such as WLL(Wireless Local Loop), CDMA 1900 to 2170MHz, cellular phones, and other Wireless Communications Systems. The amplifier module offers low current consumption, and provides a low noise figure, high gain, and good linearity.

Design Characteristics

The SKY66189-11 is designed using advanced SiGe bipolar technology and operates over a wide range of supply voltages, from 1.8 to 2.0V, providing excellent linearity and low power consumption. The device also features a low noise figure of 5.2dB, high gain of 38dB, and low distortion. The SKY66189-11 is designed to minimize external components and complex board layouts, saving layout board space and simplifying any design.

Applications

The SKY66189-11 can be used in a wide range of applications, such as WLL(Wireless Local Loop), CDMA 1900 to 2170MHz, cellular phones, and other Wireless Communications Systems. It is particularly suitable for use in cellular base stations, WLL systems, and other communications systems that require high linearity and low distortion.

Working Principle

The SKY66189-11 is an RF amplifier integrated circuit designed for use in WLL and other wireless communications systems. The amplifier module consists of a differential input stage, a high linearity linear 5dB gain stage, and a 20dB gain output stage. The amplifier uses a combination of an Emitter-FollowerDarlington configuration and a balanced common-base amplifier to provide up to 31dB of gain. The bias circuitry is fully integrated, eliminating the need for external components. Output matching is generally not required with the SKY66189-11, as the device is internally matched to 50 Ohms over a wide range of frequencies.

Conclusion

The SKY66189-11 is a high linearity RF amplifier integrated circuit designed for a wide range of applications, such as WLL, CDMA 1900 to 2170MHz, cellular phones, and other Wireless Communications Systems. The amplifier module offers low current consumption, and provides a low noise figure, high gain, and good linearity. The device also features a low noise figure, high gain, and low distortion, and requires no external components. The SKY66189-11 is an ideal choice for a wide range of wireless applications requiring high linearity, low noise, and low power consumption.

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