BGF844,127

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Frequency:	869MHz ~ 894MHz
P1dB:	--
Gain:	30dB
Noise Figure:	--
RF Type:	GSM, EDGE
Voltage - Supply:	30V
Current - Supply:	245mA ~ 320mA
Test Frequency:	--
Package / Case:	SOT-365C
Supplier Device Package:	SOT-365C

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RF Amplifiers: BGF844,127 Application Field and Working Principle

RF amplifiers are increasingly important in next-generation communication systems, as they enable improved signal transmission and reception. The BGF844,127 amplifier is specifically designed to meet the needs of this emerging era of communication by providing superior amplification of RF signals with minimal distortion and noise. In this article, an overview of the BGF844,127 application field and working principle is provided.The BGF844,127 is an integrated RF amplifier module with an operating frequency range of 50 MHz to 2.7 GHz. The module is designed for both low noise and high linearity applications in transmitter and receiver systems and can be used in commercial wireless terminals, EC-GSM systems, DTT systems, EDGE systems, CDMA systems, and PDH systems. In addition, it is compatible with both analog and digital signal processing units, enabling it to be used in a wide range of applications.In terms of performance, the BGF844,127 offers excellent linearity characteristics, with a third order intercept point of up to 74 dBm and a maximum gain of 43 dB. The module also offers low noise figure figures with a NFmin of 1.5dB; this ensures its compatibility with systems that require low noise. Additionally, the high IP3 capability of the module ensures its superior dynamic range performance.The BGF844,127 utilizes a Class-AB GaAs power amplifier architecture that is highly efficient in applications such as low-noise amplifiers, cellular radio, and general-purpose communication systems. This architecture is based on a cascode topology, which eliminates unnecessary current losses, enabling the amplifier to achieve its high power output. The module also features a three stage differential input stage design, which improves its distortion performance, while the wideband input matching provides increased linearity and stable operation.The operation of the BGF844,127 can be summarized as follows. First, the RF signal is input into the amplifier via the input matching network. This signal is then combined with an internal reference bias signal, before being filtered through two stages of gain control. The output from the gain control stage is then processed through a power amplifier, which amplifies the signal to the required level. Finally, the amplified output is passed through the output matching network to complete the process.In conclusion, the BGF844,127 is an integrated RF amplifier module designed to meet the demands of the next generation of communication systems. It features a high linearity and low noise, with a maximum gain of 43dB, and is compatible with both analog and digital signal processing units. Additionally, its Class-AB GaAs power amplifier architecture ensures a high efficiency, while its three stage differential input stage design and wideband input matching further enhance its performance.

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