SPDT RF switch delivers high linearity in the 5–1794 MHz band

8th June 2022
Mick Elliott

Availability and full design support capabilities for a new UltraCMOS SPDT RF switch from pSemi Corporation is announced by Richardson RFPD.

The PE42726 is a HaRP technology-enhanced reflective SPDT RF switch designed for use in cable applications, including DOCSIS 3.0/1 cable modem, set-top box and residential gateway.

It delivers high linearity, excellent harmonics performance and high surge immunity in the 5–1794 MHz band.

It also features low insertion loss and high isolation performance, making the PE42726 ideal for DOCSIS 3.1 applications.

The PE42726 is manufactured on pSemi’s UltraCMOS process, a patented variation of silicon-on-insulator (SOI) technology on a sapphire substrate, offering the performance of GaAs with the economy and integration of conventional CMOS.

Additional key features of the device include:

  • Harmonics performance:
    • 2fo of –121 dBc @ 17 MHz
    • 3fo of –150 dBc @ 17 MHz
  • Best-in-class linearity across frequency band
  • Insertion loss: 0.3 dB @ 1218 MHz
  • Isolation: 39 dB @ 204 MHz
  • Packaging: 12-lead 3 mm x 3 mm x 0.75 mm QFN

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