Peregrine Semiconductor debuts receiver-protection RF switch

June 6, 2017

Honolulu, HI. Peregrine Semiconductor Corp. at IMS 2017 this week introduced the UltraCMOS PE42823, a high-power receiver-protection RF switch. Suitable for wireless infrastructure applications, this reflective switch is optimized for emerging radio architectures such as massive MIMO. The PE42823 delivers excellent single-event peak power handling, low power consumption, and high linearity. Offered in a compact form factor, this high-power switch features built-in ESD protection—a key benefit for systems that demand high reliability.

Receiver protection switches are used to protect the system when an antenna is disconnected, which can occur at installation, during field failure, or with unexpected power surges. The PE42823 switch is designed to reliably handle the reflected power and to protect the receiver system from damage. Unlike competing PIN-diode solutions, the PE42823 requires no external RF matching components, resulting in a smaller board size and lower BOM costs. PIN-diode based high-power switches require different DC bias voltages, and these solutions need several discrete components and a specified driver IC to transfer control logic to these different DC bias voltages.

“Emerging wireless infrastructure systems require intelligent components that reliably deliver low power consumption in a compact form factor,” said Robert Wagner, director of product marketing at Peregrine Semiconductor. “Peregrine’s new PE42823 high-power switch offers a clear power handling and size advantage over competing PIN-diode solutions. Plus, design engineers can confidently trust the reliability and repeatability of Peregrine’s UltraCMOS technology platform.”

Covering a frequency range from 700 MHz to 6 GHz, the PE42823 is a reflective SPDT switch designed for use in high-power and high-performance wireless infrastructure applications. The RF protection switch delivers single-event peak-power handling of 51 dBm LTE and current drain of 120 μA. The switch’s input IP3 is 70 dBm, and the input IP2 is 105 dBm. At 2.7 GHz, the switch has isolation of 43 dB on the receive path and 34 dB on the transmit path. The PE42823 features built-in ESD protection with an ESD rating of 4.5 kV HBM on RF pins to ground. In addition, it has an extended operating temperature of +105°C.

Offered in a compact 16-lead, 3 x 3 x 0.75-mm QFN package, volume-production parts and evaluation kits are now available. For 10k-quantity orders, each PE42823 switch is $5.43.

http://www.psemi.com/newsroom/new-products/495921-pe42823-high-power-receiver-protection-rf-switch

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