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Aerospace

Silicon Switch Reduces Size, Power Use in Cellular Radio RF Front Ends

18 May 2016

Analog Devices, Inc. has introduced a high power (44 W peak) single-pole, double-throw (SPDT) silicon switch that enables designers to reduce hardware size and bias power consumption in cellular radio systems. ADI’s ADRF5130 switch meets these requirements through a high level of integration that eliminates the need for external components.

Analog Devices’ ADRF5130 silicon switch. Source: Analog Devices Analog Devices’ ADRF5130 silicon switch. Source: Analog Devices

The switch also reduces power consumption by operating on a single low-voltage supply with low current consumption, compared to existing pin-diode-based solutions. The ADRF5130 is manufactured using silicon technology, and is housed in a small 4 × 4 mm LFCSP SMT package.

The ADRF5130 is specified at 0.7-GHz to 3.5-GHz frequency band with typical 0.6-dB insertion-loss, high isolation of 50 dB, excellent linearity of +68 dBm and peak power handling of 44 W during continuous operation mode. The device features robust 2000-V electro-static-discharge (ESD) protection on all device pins. It also incorporates a fast CMOS-compatible control interface with switching time less than 1 us. In addition, a symmetrical circuit architecture allows the RF inputs to be used interchangeably in high-power applications.



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