SKY85302-11

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SKY85302-11 RF front end product is an integrated solution combining low noise amplifiers (LNAs) and power amplifiers (PAs) for wireless communication applications. It is ideal for certain low-power applications, such as internet of things (IoT) devices and wearable applications. This product offers a maximum supply current of 4.3 mA with a standard -18 dBm output power. It provides excellent combination of gain and linearity as well as good boot-up repeatability.

The SKY85302-11 application field primarily involves circuit design for transceivers of most of the cellular and short-range IoT and wearable devices. This product is compatible with the 3GPP LTE bands and a various short-range communications standards including Bluetooth, Wi-Fi, ZigBee, and ANT. Moreover, with its operating frequency range of 716 MHz to 960 MHz, it fits the many different low-power wireless applications. The product also packages as a multizone housing, so it eliminates the external filtering and components required in traditional LNA and PA designs.

The working principle of the SKY85302-11 RF front Fend begins with the RX (receive) path. The low noise amplifier at the front end of the RX path allows for the signal to enter the pin and amplifies it to a higher voltage for further processing. The LNA gain can be adjusted through a voltage control circuit, and its output is then routed to the PA, which is used to amplify the power of the received signal. Finally, the output of the PA is sent to the demodulator.

The TX (transmit) path of the SKY85302-11 works in a similar manner. The transmitter signal is received from the modulator and passed into the PA. Once the signal is amplified, it is sent to the antenna through the matching network. In addition, the current to the PA is regulated through the control circuit, ensuring that the output power remains stable despite varying supply voltage.

In summary, the SKY85302-11 is an excellent choice for low-power applications, as it combines both a LNA and PA into one package. It also provides good linearity and gain performance and is fully compatible with various cellular and short-range standards. It uses a voltage control circuit for signal amplification, and its multizone housing allows for easier circuit path design. With its low supply current requirement, this product offers an efficient solution for transceiver design with high performance.

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