RF switch for RKE and TPMS systems tolerates harsh environments

April 17, 2013 // By Christoph Hammerschmidt
Fabless RF chip vendor Peregrine Semiconductor Corporation has launched an Automotive Electronics Council (AEC) Q100-certified SPDT RF switch. The HaRP technology-enhanced PE42359 switch is certified to AEC-Q100 Grade 2, meaning it is qualified for operation in the extended temperature range of -40 to +105 degrees Celsius. The device is designed for automotive applications such as Remote Keyless Entry (RKE), emergency communication systems, Tire-Pressure Monitoring Systems (TPMS), automotive multimode compenser modules, and automatic toll systems.

The PE42359 switch has ESD protection of 2 kV HBM on all pins. Other features include low insertion loss of 0.35 dB @ 1GHz, 0.5 dB @ 2 GHz; and high isolation of 30 dB @ 1000 MHz, resulting in improved overall RF performance. Using a nominal +3V power supply voltage, a typical input 1 dB compression point of +33.5 dBm can be achieved. With low power consumption of only 9 microamperes, and a minimum power supply voltage of 1.8V, the PE42359 enables longer battery life in portable applications such as RKE devices.

Along with the PE42359, Peregrine also announced the availability of a suitable evaluation kit (part # EK42359-01, $70.00) which enables designers to demonstrate the PE42359 switch in their applications.

The PE42359 switch is available in a miniature 6-lead SC-70 package, for $0.39 each in 10k-unit quantities. For more information, visit http://www.psemi.com.