HMC557LC4TR-R5

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RF Mixers are unique passive components used to same complex and exciting signals. They are commonly used to transpose signals from the RF domain to the intermediate frequency (IF) domain. RF Mixers can be used to perform a variety of functions, such as frequency translation, modulation, up/down-conversion, detection, and filtering. One such RF Mixer is the HMC557LC4TR-R5.

The HMC557LC4TR-R5 is a silicon monolithic dual-output active mixer. It is based on a SiGe BiCMOS process and features integrated RF and local oscillator (LO) baluns on both inputs. It has a typical conversion gain of 12 dB and an input-referred noise figure of 2.6 dB. The HMC557LC4TR-R5 has two output ports, each with a different coupling level. It also has an integrated active voltage-controlled attenuator to control the RF output power level.

The HMC557LC4TR-R5 is perfect for applications requiring low-noise downconversion and high dynamic range, such as wireless infrastructure systems, point-to-point microwave radio systems, and satellite communication systems. It can also be used for instrumentation applications such as signal generators, receivers, radio telescopes, and digital storage oscilloscopes.

The HMC557LC4TR-R5 operates on a single +5V supply and draws a typical supply current of only 27 mA. The device can tolerate a supply voltage between ± 4.5V and +5.5V and is offered in a small, low-cost 12-pin TSSOP package. The package is designed to dissipate up to 3W of power.

The HMC557LC4TR-R5 has an RF input frequency range of 40 MHz to 4 GHz and an LO input frequency range of 33 MHz to 4 GHz. The mixer can operate from DC to 34 GHz when used with a suitable external source. The mixer provides a low insertion loss of 3.5 dB across the RF input frequency range, and has a wideband noise figure of 6 dB.

The HMC557LC4TR-R5 is a Gilbert-cell type balanced mixer. This type of mixer consists of an RF port, an LO port, and two output ports. The LO signal is converted to an IF signal at one output port, while the other output port produces an image signal with a 180° phase shift. The two signals are then recombined at the output to produce the desired output signal. The transconductance of the mixer is controlled by the bias current of the Gilbert-cell, and the input and output impedances are set to match the loads.

The HMC557LC4TR-R5 is an ideal choice for applications such as frequency translation, downconversion, and signal filtering. Its integrated LO and RF baluns and its low current consumption make it a perfect choice for a wide variety of applications. It offers excellent performance in terms of conversion gain, input-referred noise figure, and insertion loss, making it an ideal solution for a variety of RF design solutions.

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