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RF switch delivers 50 times more isolation and 10 times better linearity for 802.11ac Wi-Fi access points

Tue, 09/24/2013 - 2:33pm

Peregrine Semiconductor Corporation announced the highest performance, carrier-grade Wi-Fi switch on the market. With the highest isolation by a factor of 50, Peregrine’s switch also sets a new bar in linearity, which makes it ideally suited for the fast-growing market of 802.11ac Wi-Fi access points.

The rising amount of cellular-data offload to Wi-Fi networks is significantly increasing the complexity of access-point radios. Most Wi-Fi access points now contain multiple radios in order to address the capacity demands of cellular data. Based on Peregrine’s UltraCMOS technology, the PE42423 is the first in its class to offer 41 dB of port-to-port isolation at 6 GHz. This best-in-class isolation enables multi-radio access points to perform at peak levels without interference between the radios. Exceeding the stringent 802.11ac standard, Peregrine’s switch also offers 65 dBm of linearity to achieve higher data rates. In addition, UltraCMOS technology delivers equally high performance at either 3.3V or 5V, unlike gallium arsenide (GaAs) switches that experience severe performance degradation below 5V. Peregrine’s switch gives networking-product designers the flexibility to operate at lower power supplies and reduce energy consumption.

Features, packaging, pricing, & availability

Now shipping, Peregrine’s PE42423 is a Single-Pole Double Throw (SPDT) RF switch featuring low insertion loss (0.8 dB @ 2.4 GHz, 0.95 dB @ 5.8 GHz), fast switching time (500 ns) and high ESD ratings (3.0 kV HBM on all RF pins). The switch supports +1.8V standard logic control. It provides stable RF performance over a power supply range between 2.3V and 5.5V. The packaging is RoHS compliant, 16-lead QFN and measures 3 x 3 mm. View the PE42423 press kit for images, video and datasheet. Contact Peregrine directly for evaluation kits, samples, volume-production quantities and pricing.

 

Product Specification

Peregrine’s PE42423 UltraCMOS® SPDT Wi-Fi RF Switch

100 MHz to 6 GHz

Features:

802.11 a/b/g/n/ac support

Wide power-supply range between 2.3V and 5.5V

+1.8V control logic compatible

Exceptional isolation

·       47 dB @ 2.4 GHz

·       43 dB @ 6 GHz

High linearity across supply range

·       IIP3 of 65 dBm

·       IIP2 of 120 dBm

High power handling

·       38.5 dBm @ 2.4 GHz

·       37 dBm @ 6 GHz

Fast switching time of 500 ns

ESD performance

·       3.0kV HBM on RF pins to GND

·       1.5kV HBM on all pins

·       1.0kV CDM on all pins

 

Additional information is available at http://www.psemi.com.

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