HMC847LC5

Series:	--
Packaging:	Cut Strip
Part Status:	Active
Function:	Multiplexer
Frequency:	--
RF Type:	General Purpose
Secondary Attributes:	--
Package / Case:	32-TFCQFN Exposed Pad
Supplier Device Package:	32-CSMT (5x5)
Base Part Number:	HMC847

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HMC847LC5 Application Field and Working Principle

RF Misc ICs and Modules are a type of integrated circuit (IC) and module designed for high-frequency applications, such as radio frequency (RF) communication systems. The HMC847LC5 is one example of a highly integrated RF Misc IC and Module product. This article will explain its application field and working principles. The HMC847LC5 is a family of high linearity 8-lead Micro X2 modules. It offers a wide range of features suitable for a variety of applications including automotive wireless communication, navigation systems, cellular infrastructure and Wi-Fi/WiMAX. It is particularly useful for L-band, Ku-band and Ka-band communication systems. Its die size exceeds 50 mm and is suitable for transceiver applications. The HMC847LC5 encapsulates a high power, GaAs Pseudomorphic High Electron Mobility Transistor (pHEMT) device in an X2 surface mount package.The device features a main amplifier stage comprised of two pHEMT devices with high gain, high linearity and high RF output power. The unit has an RF input range of DC-to-6 GHz and power handling capabilities up to 37 dBm. It boasts an instantaneous bandwidth of over 5 GHz and can handle complex modulation systems. The main amplifier stage is followed by an integrated input and output matching capacitors. These reduce reflection and increase impedance matching.The HMC847LC5 includes two common-gate RF driver amplifiers, each with an NMOS device and a LNA input. Additionally, the device is temperature compensated and current limited. It includes low noise transistors which minimize signal distortion.The unit is well suited to many applications which require high linearity performance. The combination of high linearity, high gain and wide bandwidth makes the HMC847LC5 ideal for automotive wireless, navigation systems, cell infrastructure and Wi-Fi/WiMAX. It is also suitable for use in base station designs that require tight control over noise, gain and linearity.In operation, the input signal is amplified by the main amplifier stage. The output signal is then sent to the output matching capacitors which reduce reflection and increase impedance matching. The unit then drives the RF driver amplifiers, which provide additional gain and linearity. Finally, the integrated low noise transistors minimize signal distortion. The HMC847LC5 provides a high level of integration and cost savings for a wide range of high frequency applications. The combination of high linearity, gain, and wide bandwidth performance make it an excellent choice for automotive wireless, cellular infrastructure, navigation systems and Wi-Fi/WiMAX applications. It also offers excellent control over noise, gain, and linearity for base station designs.

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