SKY77547-11

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Application Field and Working Principle of SKY77547-11

SKY77547-11 is classified as a RF Front End (LNA + PA) used in the communication fields. It is a low voltage, low noise amplifier with a bypass path, making it suitable for implantable medical and body area network applications. The RF Front End (LNA + PA) is designed to minimize power consumption and linearity, making them suitable for applications such as cellular, WiMAX, WLAN, GPS, Bluetooth and ZigBee.

SKY77547-11 is designed for operation in the 4G cellular, 802.11a/ac WLAN, and 15dBm Bluetooth bands. This device uses an external bypass path to improve linearity and power consumption. The output power is adjustable and can range from 0dBm to 30dBm. The power supply range is 3V to 5.5V and the supply current is typically 10mA at 30dBm. The gain is adjustable and can range from 0dB to 20dB. The noise figure is typically 2.9dB.

Working Principle of SKY77547-11

The SKY77547-11 utilizes a combination of active and passive components to achieve low noise and low power consumption. The device has a dual-stage architecture and includes a low noise amplifier (LNA) and a power amplifier (PA). The LNA is a high-gain, high-linearity amplifier with a noise figure of typically 3dB and a typical gain of 20dB. The PA is designed for high linearity and low distortion, providing a typically 30dBm peak output power.

In addition to the amplifier stages, the SKY77547-11 also includes an external transistor for bypassing. This transistor is used to reduce power consumption at low output power levels and improve linearity at higher output power levels. The transistor is typically operated using a voltage mode control, allowing for low voltage operation and the ability to switch at high speeds.

The SKY77547-11 also features a number of configurable output power options. These options include an adjustable gain option, which allows for the output power to be adjusted between 0dBm and 30dBm. Additionally, the device includes an output power limiter, which can be configured to limit the maximum output power to a desired level. Finally, the device includes an adjustable input power limit option, which can be used to limit the input power level to a desired level.

Conclusion

Conclusively, the SKY77547-11 is a low voltage, low noise amplifier with a bypass path, making it suitable for implantable medical and body area network applications. It utilizes a dual-stage architecture consisting of a low noise amplifier (LNA) and a power amplifier (PA), and features configurable output power options. The device can be used in a variety of communication fields, such as cellular, WiMAX, WLAN, GPS, Bluetooth, and Zigbee.

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