ATR4285-TKSY

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The ATR4285-TKSY is a member of the family of radio frequency Custom Integrated Circuits (RFICs) and Modules developed by Toshiba. It is a low-power, multi-mode receiver operating in the 800, 900, 1.7, 2.4 and 5.8 GHz frequency bands. The device is suitable for use in Communications Infrastructure (CIS) products, such as point-to-point (P2P) radios, satellite communication (SatCom) systems, base stations, and access points. The ATR4285-TKSY offers a range of features which make it ideal for use in CIS products, including:

Input and Output Impedance Matching
The ATR4285-TKSY has a wide range of input and output impedance matching options, allowing it to be easily integrated into a variety of RF front-end designs.

Reverse Mode Operation
The ATR4285-TKSY can operate in reverse mode, allowing it to be used as an image rejection duplexer in applications such as satellite and cellular base stations.

Low Noise Amplification
The ATR4285-TKSY incorporates an amplifier stage which delivers low noise figures for improved receiver sensitivity.

Power Control
The ATR4285-TKSY incorporates power control solutions to reduce overall power consumption, making it ideal for battery operated applications such as wireless handheld devices.

Channel Filtering
The ATR4285-TKSY includes an integrated channel filter which helps to reduce out of band interference.

Working Principle:
The ATR4285-TKSY uses an integrated low-noise amplifier (LNA) stage to amplify the incoming signal prior to conversion to an intermediate frequency (IF). This stage is also used for power control, allowing the device to operate in reverse mode to reduce overall power consumption. The incoming signal can be filtered using the integrated channel filter to reduce interference from out of band signals. The signal is then converted to a frequency suitable for further processing, typically the IF frequency of the system. The amplified and filtered signal is then sent to the next stage in the chain, either for processing or further amplification.

The ATR4285-TKSY is designed to provide consistent performance across a wide range of frequency bands, with a relatively low power consumption. It is well suited for use in a wide range of Communications Infrastructure (CIS) products, such as point-to-point (P2P) radios, satellite communication (SatCom) systems, base stations, and access points. It is also suitable for use in other RF applications, such as cellular base stations and wireless handheld devices.

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