RF amplifiers and energy amplifiers from 860 MHz to 28 GHz

“The global demand for faster downloads and more data is increasing bandwidth. Switching to GHz frequencies is the only way to deliver wider pipelines to the handset, desk, home and office. However, RF design in the GHz band is a challenge even for specialized companies with experienced engineering teams, ”says the company. “Delivering high bandwidth to small and portable devices over wireless interfaces requires excellent RF design. The SµRF series lowers the design barrier. “

The devices are:

  • CMX90G301 (pictured)
    1.4 – 7.1 GHz amplifier with positive gain slope + 1 dB
    Cascadable 50 Ω MMIC gain block with low power consumption
  • CMX90G302
    1.4 – 7.1 GHz amplifier with positive gain slope + 2 dB
    Cascadable 50 Ω MMIC gain block with low power consumption
  • CMX90A702 – coming soon
    28 GHz medium power amplifier, 5 G band n257
  • CMX90A703 – coming soon
    28 GHz GaN Doherty power amplifier, 5 G band n257
  • CMX90A003
    1W 860 – 960MHz power amplifier
    Two-stage, fully tuned MMIC with + 29.5 dBm saturated power for license-free 860 to 960 MHz bands
  • CMX90A004
    2W 860 – 960MHz power amplifier
    Two-stage, fully tuned MMIC with + 32.5 dBm saturated power for license-free 860 to 960 MHz bands

Using the CMX90G301 as an example, GaAs pHEMTs are used and P1dB of + 11.5 dBm at 3.5 GHz and a positive gain slope of + 1 dB across the band are output, “eliminating the need for compensation and compensating for increasing system losses with frequency “. said CML.

The input and output are both tuned to 50 Ω, and the internal active bias allows operation over a 2.7 to 5 V supply range that typically consumes 20 mA. It has a small signal gain of 14.5 – 15.5 dB and a noise figure of 2 dB.

Its activation pin is logic compatible with 1.8V and works up to 105 ° C.

The packaging is 3 x 3 mm VQFN-16.

There are also two existing products under the umbrella of SµRF:

  • Broadband RF power amplifier CMX901
    three-stage high gain and high efficiency for use in VHF and UHF frequency bands up to 950 MHz.
  • Broadband RF power amplifier CMX902
    three-stage high gain and high efficiency for use in VHF and UHF frequency bands up to 700 MHz.

“These benefits include excellent RF performance, matched input / output impedances, and standard IC packaging for easier circuit and board design and manufacture,” said CML. “The products are supported by easy-to-use, inexpensive evaluation tools.”

Possible applications are almost everywhere in the company. The list includes: virtual and augmented reality, high-resolution imaging, high-performance computing and the connected car, then long-range data connections such as smart grids, 5G pico cells, fixed line broadband, global broadband networks and satellite communications.

The SμRF product page can be found here

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