Peregrine Semiconductor Corp. announced availability of the industry’s highest-isolation SPDT RF switch for the wireless infrastructure market.
The UltraCMOS based PE42420 RF switch has high isolation of 64 dB @ 4 GHz—an approximately 20% increase over competing devices on the market, according to Peregrine. Additionally, the switch features HaRP technology enhancements to deliver high linearity, with an IIP3 of 65 dBm.
By providing high linearity and isolation in a single, small package, the PE42420 switch simplifies Digital Pre-Distortion (DPD) loop design, which reduces cost and shortens time to market.
In order to maximize network performance in next-generation wireless communication systems, high port-to-port isolation is required, to prevent the output signal from spilling into adjacent radio channels or bands.
Additionally, because the DPD receiver is shared by multiple Power Amplifiers (PAs) in these systems, high isolation between the multiple paths ensures that the PA that is being sampled is not contaminated by other signals.
The 0.1 to 6 GHz PE42420 switch supports 1.8V control logic, enabling the use of lower-voltage, and lower-power, microcontrollers. ESD tolerance of 2kV HBM on all pins eases manufacturing and results in higher reliability of the end product.
The PE42420 RF switch enables increased network capacity and higher data rates in infrastructure applications such as Base Station Transceiver Systems (BTSs), Remote Radio Heads (RRHs), and wireless backhaul; as well as Industrial, Scientific and Medical (ISM) band devices that operate in the 2.4 GHz and 5.8 GHz frequencies.
The PE42420 switch is available in a 20-pin 4 mm x 4 mm LGA package and is priced starting at $1.25 each.