RF9812B

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Frequency:	850MHz, 900MHz, 1.8GHz, 1.9GHz, 2.1GHz
P1dB:	--
Gain:	--
Noise Figure:	--
RF Type:	GSM, EDGE
Voltage - Supply:	3.5V
Current - Supply:	--
Test Frequency:	--
Package / Case:	Module
Supplier Device Package:	Module

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RF amplifiers are components which allow for the increase in power in a signal, and so are invaluable for the amplification of tiny, low-power signals prior to broadcast, such as Wi-Fi, Bluetooth, cellular signals, and broadcasting transmissions. RF amplifiers are found in numerous applications, from TV and sound system broadcasting, cell phone towers and base-stations, or even for two-way radio communications. RF amplifiers are essential to ensure the signal strength is adequate to travel to its destination and be successfully received.The RF9812B is a medium power amplifier, specifically designed for use at frequency bands around 900 MHz, suitable for use in applications such as radio transmission, wireless communication systems, and satellite communications. This versatile amplifier operates from a voltage supply range from 8V to 18V and offers a single conversion gain of 17.8 dB. It also boasts outstanding linearity, MPE of 13 dB, and an IP3 of 60 dBm.The RF9812B offers high gain, low noise figure, and high power added efficiency which can be significantly improved by adding a pre-drive stage. The variable bias supply permits a more efficient fine tuning of the gain and the power added efficiency. In addition, the RF9812B features high power-added efficiency as high as 55%, low operating current consumption of 7 mA typical and various enable functions.The functioning principles of the RF9812B are similar to those of other RF amplifiers. It comprises of two main stages: the pre-amplifier and the power amplifier. It amplifies the signal by taking advantage of the electrical properties of radio frequency (RF) components and also employs the principles of power handling.At the pre-amplifier stage, the signal is amplified to the appropriate size and energy level. This stage is also responsible for providing the RF input to the power amplifier so that the second stage can provide the desired output. At the power amplifier stage, the RF input signal is amplified further and is sent out through the antenna. It is also important to note that there is a trade-off between power and efficiency at this stage.Overall, the RF9812B is capable of boosting the signal from a low-power input to high-power output at comparatively high gain with excellent power added efficiency. This is perfect for wireless systems and transmission which may need to be sent over long distances. Due to its efficient operation and high gain, the RF9812B is a great choice for use in applications such as radio transmission, cell phone base-stations, and satellite navigations.

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