SKY85314-11 RF/IF and RFID

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The RF front end consists of a low noise amplifier (LNA) and a power amplifier (PA). The SKY85314-11 is a 2-stage amplifier used to process radio-frequency (RF) signals between 824-893MHz. The device is designed for use in GSM, CDMA and ISM applications. The SKY85314-11 utilizes a low noise input stage to minimize noise contribution and a high gain output stage for added flexibility.

The low noise stage is composed of an LNA input stage and a higher-gain PA stage. The input stage, or LNA, processes incoming RF signals prior to amplification. It is designed to reduce noise, increase sensitivity, and improve signal dynamic range. The higher gain PA stage ensures a high power output level and excellent linearity. This allows for amplified signal output without significant distortion.

The SKY85314-11 features a power supply range of 5-17 Volts and utilizes an integrated on-chip impedance matching circuitry that can switch between different output modes. This allows for improved modulation and power efficiency as well as reduced reactance losses. The device also features a low noise figure, high operating temperature and low current consumption. It has excellent reverse isolation performance, making it suitable for use in noise-sensitive applications such as cellular phones.

The SKY85314-11’s working principle is based on the principle of heterodyning. The device mixes two signals together to produce a single, higher frequency signal. The single signal is then amplified by the LNA and PA stages. This process allows for amplification of a wide frequency range and improved overall performance. The resulting output signal has a higher signal-to-noise ratio than the input signal.

In conclusion, the SKY85314-11 is an excellent choice for RF front end solutions. It combines a low noise input stage with a higher-gain output stage for improved performance. Additionally, the device’s on-chip impedance matching circuitry and heterodyning technique provide excellent operating characteristics. This allows it to be used for a variety of GSM, CDMA and ISM applications where low power consumption and high power output are required.

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