Dual differential RF switch offers matched channels to 6 GHz

July 31, 2015 // By Graham Prophet
Peregrine Semiconductor (part of Murata) has added the PE42920 to its range; a dual differential single pole double throw (DDSPDT) RF switch developed on Peregrine’s UltraCMOS® process technology.

PE42920 is a broadband and low loss device enabling the switching of two independent differential signals. it consumes less power than active differential switches and offers 2 kV HBM ESD protection. It has high isolation between same-channel inputs as well as opposite active channels. It has been designed for low phase mismatch between matched paths.

The swith is specified over 10 kHz–6 GHz; typical operating parameters include; insertion loss of 0.7 dB; isolation between same channels at 6 GHz of 26 dB; isolation between opposite active channels at 6 GHz of 30 dB; and phase mismatch between matched paths at 6 GHz of 15 degrees.

PE42920 is manufactured on Peregrine’s UltraCMOS process, a variation of silicon-on-insulator

(SOI) technology on a sapphire substrate, which the company positions as offering the performance of gallium arsenide with the economy and integration of conventional CMOS.

Peregrine Semiconductor; www.psemi.com/products/rf-switches/pe42920