HMC1087-SX

The HMC1087-SX is a wideband amplifying element used in transmitter and receiver amplification architectures. It is commonly used in RF amplifiers, transceivers, receiver signal chains, as well as transmitter and local oscillator amplifiers. The device is a wideband, high dynamic range, low distortion amplifier capable of achieving gain of 16 dB and output power of +13 dBm, with a low noise figure of 1.3 dB.

The HMC1087-SX is a transistor-based amplifying device built on a GaAs process, and has a three-stage topology. It operates from 1.5 to 4.0 GHz and provides a third-order output intercept point (OIP3) of +37 dBm.

The amplifying process of the HMC1087-SX begins in the input stage with the signal being received and amplified by one or more amplifiers. The output of these amplifiers is then fed to one or more intermediate amplifiers which amplify the signal even further. The last stage consists of one or more output amplifiers, which serve to boost the signal to the desired output level.

The power output of the HMC1087-SX is directly proportional to the circuit design and input signal power. To provide a good linear amplifier output, the device requires a good-quality power supply and decoupling capacitors.

The device also features an automatic gain control (AGC) loop, which allows the output power level to be adjusted to a desired level. This feature helps reduce distortion while maintaining a constant output power. The AGC function can be set with a resistor divider or a current-mirror configuration to provide greater flexibility.

The HMC1087-SX has excellent linearity characteristics, with an error vector magnitude performance of less than 0.2 dB. This makes it a great choice for applications where distortion needs to be kept to a minimum. It is also ideal for applications that require a high gain, such as base stations.

Overall, the HMC1087-SX is a high-performance, low-distortion amplifier suitable for a variety of applications. Its wideband capabilities, low noise figure, and good linearity make it a great choice for RF amplifiers and transceivers.