Date: 19/02/2024

pSemi starts volume production of its 8.5GHz high-isolation SP4T switches

pSemi announced the production readiness of its newest SP4T switches featuring broadband frequency switches with industry leading high isolation up to 8.5 GHz: the PE42445 and the PE42446. Both switches deliver high linearity and best-in-class isolation performance for a wide variety of applications, including digital pre-distortion (DPD) and VSWR monitoring, portable wireless radios, repeaters and E911 systems, electronic and automatic test equipment, and more.

Offered in a 20-lead (3×3 mm) LGA package and 24-lead (4×4 mm) LGA package, the PE42445 and PE42446 switches offer greater than 60 dB isolation, preventing interference and maintaining signal integrity. They are built for extended operating temperatures ranging from -40°C to +125°C. Based on industry requirements for high-isolation SP4T switches, the new products offer low insertion loss across the band, high linearity of 65 dBm IIP3, and fast switching time of 200 nsec.

The new PE42445 and PE42446 switches integrate seamlessly into 4G and 5G base stations and mMIMO architecture, providing DPD feedback loops and transmitter monitoring signal paths to prevent interference and maintain signal integrity, given massive MIMO applications.

Murata owned pSemi announced the production readiness of its latest SP4T switches, the PE42445 and PE42446. Engineered with broadband frequency capabilities and boasting industry-leading high isolation up to 8.5 GHz, these switches enable higher signal integrity and interference prevention in range of applications.

The PE42445 and PE42446 switches offer broad frequency coverage, extending up to 8.5 GHz. This expansive frequency range enables compatibility with a wide array of applications, including digital pre-distortion (DPD), VSWR monitoring, wireless radios, repeaters, and electronic test equipment.

With isolation levels exceeding 60 dB, these switches provide higher interference prevention and signal integrity maintenance. Whether deployed in demanding environments such as base stations or mMIMO architecture, the PE42445 and PE42446 switches ensure reliable performance even in high-density RF environments.

Housed in compact 20-lead (3×3 mm) and 24-lead (4×4 mm) LGA packages, these switches are engineered for durability and reliability. They boast extended operating temperatures ranging from -40°C to +125°C, making them suitable for deployment in harsh industrial environments without compromising performance.

The PE42445 and PE42446 switches deliver low insertion loss across the frequency band, ensuring minimal signal degradation. Additionally, they offer high linearity of 65 dBm IIP3, facilitating accurate signal processing, and feature a fast switching time of 200 nsec, enabling seamless integration into dynamic RF systems.


pSemi's PE42445 and PE42446 SP4T switches allows designers to optimize signal integrity and prevent interference across a diverse range of applications, from 4G and 5G base stations to mMIMO architecture. As connectivity continues to drive innovation across industries, pSemi's latest offerings pave the way for seamless, reliable RF communication in the era of wireless connectivity.

“Announcing volume production of PE42445 and PE42446 is a significant milestone for the pSemi team and our customers as we continue to push the envelope for what is possible in RF performance. With the industry’s highest broadband frequency coverage of up to 8.5 GHz for the first time in a high-isolation SP4T switch, PE42445/46 now deliver a plethora of performance advantages to our customers who are building complex 5G base stations and mMIMO architecture.” says Vikas Choudhary, VP of global sales, marketing at pSemi.

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