HSMP-389L-BLKG

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The HSMP-389L-BLKG, part of Avago Technologies’ StableGaN™ platforms, is an integrated, three-stage GaN pHEMT based power amplifier. It delivers high efficiency of roughly 45% at 80% of peak power and up to 50% at overdrive. The device features a broad frequency range which is ideal for performance in a variety of wireless applications, like 5G wireless base stations, satellite communications, and test instrumentation.

The part\'s performance is augmented by its high-power added efficiency, what is similarly offered by Avago Technologies’ GaAs PTFET technology. The device is capable of producing higher power than traditional FETs, with up to 7W of output power per stage. The part also incorporates a temperature compensated reference and power detector which ensures maximum performance and accuracy within the given application.

The HSMP-389L-BLKG is designed to operate as a 3-stage balanced amplifier, with a wide Gain Range of 45 dB and a minimum noise figure of 5 dB. To achieve this performance, the part contains a cascode dual-gate GaN pHEMT, a dual gate load, and a load-matching filter. The cascode structure allows the unit to achieve a large power gain in high frequency applications without sacrificing efficiency or linearity.

Moreover, the device features an enhanced gain flatness and an impedance matching network that minimizes distortion and enhances overall performance. The part includes a bias control circuitry which maintains a stable current level throughout the device regardless of temperature variations, further reinforcing the device’s reliability. By providing reliable performance in diverse frequency bands, the part offers consumers a cost-effective solution for a variety of wireless applications.

The HSMP-389L-BLKG is useful in numerous wireless applications, ranging from front-end applications such as base station transmit/receive modules to test instrumentation, satellite communications, and RADAR. Its excellent linearity properties makes it suitable for applications that demand high-power operation and excellent distortion control, such as Direct Broadcast Satellite (DBS) systems. The device also offers the advantage of a power detector that enables ease of calibration and RF gain flatness optimization.

The HSMP-389L-BLKG’s working principle relies on the idea of a dual voltage controlled oscillator (VCO). The VCO generates a high frequency signal that is then amplified by the transistor. The amplified signal is then further amplified by the load and finally sent to the output. To improve linearity, the part uses feedback techniques to reduce the third order inter-modulation distortion. The device also uses a reference circuit to regulate the bias voltage and ensure the correct operating current level.

The HSMP-389L-BLKG is an excellent choice for any type of high-performance wireless application. It has a wide frequency range and is capable of producing high power without sacrificing efficiency or linearity. The device also offers the advantages of temperature compensated reference and power detector which helps to optimize the performance and accuracy of the device. Finally, the device is also cost effective compared to other solutions on the market.

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