AD9865BCPZRL

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RF Front End (LNA + PA) is a term used to describe the technology used to amplify, filter and condition an RF signal before or after it is transcoded. It is typically divided into two sections: Low Noise Amplifier (LNA) and Power Amplifier (PA). The AD9865BCPZRL is a high performance RF Front End system which combines advanced power amplifier design and high performance LNA.

Application Field of AD9865BCPZRL

The AD9865BCPZRL is capable of providing high power, linear, RF amplification with low noise in the very best cost-effective way. It is ideal for use in wireless infrastructure networks, consumer and Industrial communication systems, Wi-Fi and Wi-MAX applications, 3G/4G base stations, satellite communication systems, and Global Positioning Systems (GPS).

Working Principle of AD9865BCPZRL

The AD9865BCPZRL uses pulse width modulation (PWM) amplifiers to drive the signal level to its maximum. This is a highly effective method of increasing the gain of a signal, and of improving its linearity. The system operates on a split bias line, where the LNA section is biased from the main bias line, and the PA section from the secondary bias line. This makes the system more efficient and reliable, and allows it to achieve a wide range of gain settings. The system also uses temperature compensation to ensure performance is optimized over a wide range of operating temperatures.

In order to make sure that the system operates within its margins and gains, the AD9865BCPZRL utilizes an active windowing technique which imposes a maximum peak control limit. This ensures that the system can maintain its linearity without compromising its gain. Furthermore, the AD9865BCPZRL incorporates a set of sophisticated dynamic power control and dynamic shutoff features which make sure that the system does not overload during operation and is able to shut off cleanly when necessary.

Finally, the system employs a unique, distributed architecture with high speed, high power transistors that ensures maximum performance, minimal supply noise and improved power dissipation. This makes the AD9865BCPZRL suitable for use in a wide range of high-level applications, ranging from wireless LAN infrastructure to base stations and data links.

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