AD9864BCPZ

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RF Front End (LNA + PA)

The AD9864BCPZ is an integrated, low-power UltraCMOS RF front end, containing a receive path and transmit path for applications in and around the 900-MHz ISM band. It integrates a low-noise amplifier (LNA), low-side injection-locked voltage controlled oscillator (VCO), 0–30 dB variable gain amplifier (VGA), 1:2 RF splitter, switchable bandpass filter (BPF), transmit power amplifier (PA), and passive components into a single-package design.The device offers low power consumption combined with tight matching and goodfiltering performance. The AD9864BCPZ is intended for use in ISM-band wirelessmics, wireless toys, Bluetooth (2.4 GHz ISM nodes) Class 2 applications,industrial control, medical-imaging systems, and GPS tracking systems.

Application Fields of AD9864BCPZ

The AD9864BCPZ is a low-power, wideband RF front end intended forapplication in and around the 900 MHz ISM band. Commonly usedapplications for the AD9864BCPZ include wireless microphones,wireless toys,Bluetooth (2.4 GHz ISM nodes) Class 2 applications, industrial control,medical-imaging systems and GPS tracking systems.

Working Principle of AD9864BCPZ

The AD9864BCPZ integrates a low-noise amplifier (LNA), low-side injection-locked voltage controlled oscillator (VCO), 0–30 dB variable gain amplifier (VGA), 1:2 RF splitter, switchable bandpass filter (BPF), transmit power amplifier (PA), and passive components into a single-package design. The LNA is designed for very low noise operation at the frequency carrier used for transmission in ISM band applications. The VCO is used to generate the local oscillator signal required by the receiver. The VGA is used to adjust the gain of the signal based on the signal level. The BPF is used to reject out-of-band signals. The PA amplifies the signal to drive the antenna output. Finally, the passive components are used to set the overall gain of the receiver and transmit paths.

Conclusion

The AD9864BCPZ is an UltraCMOS RF front end suitable for 900 MHz ISM applications. It is a highly integrated solution, providing a low-noise amplifier, low-side injection-locked voltage controlled oscillator, variable gain amplifier, switchable bandpass filter, transmit power amplifier, and passive components, all in a single-package solution. It is suitable for use in wireless microphones, wireless toys,Bluetooth (2.4 GHz ISM nodes) Class 2 applications, industrial control, medical-imaging systems and GPS tracking systems.

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