25W SP4T switch for high power RF designs

25W SP4T switch for high power RF designs

New Products |
By Nick Flaherty

Menlo Micro has launched a new single-pole/four-throw (SP4T) DC-to-6 GHz switch for 5G network infrastructure, test and measurement equipment and other high-power RF switching applications.

The MM5140 uses Menlo Micro’s Ideal Switch process technology and allows 25W of power handling, ultra-low insertion loss of 0.2 dB at 3 GHz and the industry’s highest linearity with the third order intercept point (IP3) above 95dB from DC to 6GHz.

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The switch aims to replace electromechanical relays (EMRs) and conventional solid-state switches in applications requiring reliability such as antenna tuning and beam-steering equipment used in 5G base stations. The rapid rollout of 5G services worldwide is driving ever-increasing demand for sub-6 GHz connectivity, especially in the coveted C-band spectrum. Emerging mid-band 5G networks with advanced beamforming antennas also require reliable, high-performance RF switching technology.

The MM5140 has an operating lifetime of more than 3 billion switching cycles with no degradation in performance over a wide temperature range from -40C to +85C. The 95 dBm linearity enables significant reductions in distortion, which is a critical factor for demanding RF applications such as 5G beam-steering antennas.

The MM5140 switch features a custom-designed, built-in high-voltage charge pump/driver circuit integrated into a miniature 5.2 mm x 4.2 mm LGA package, eliminating the need for external components, simplifying customer layouts and reducing BOM cost. The integrated charge pump circuit offers both flexible SPI and GPIO digital interfaces, enabling easy control from any host processor or test system.

The switch’s highly integrated design reduces cost and design complexity and simplifies the development of numerous RF front-end systems including transmitters and receivers, RF filters, and beamforming antennas used in advanced radio architectures and radar systems. The high channel density and low losses also make the MM5140 ideal for ultra-compact switch matrices and multiplexers used for RF test and measurement applications.

“The MM5140 switch eliminates the compromises developers often face when deciding between electromechanical relays or solid-state switches for RF designs,” said Chris Giovanniello, co-founder and SVP marketing, Menlo Micro. “Ideal Switch technology enables the MM5140 to outperform EMRs across all application-critical metrics while offering the size, reliability and speed benefits of a solid-state switch. Following the success of our MM5130, MM5600, and MM5120 products, we are excited to be bringing yet another high performance Ideal Switch to the market.

Evaluation boards and engineering samples of the MM5140 SP4T switch are now available (shown above). Production release is scheduled for Q2 2022.

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