SDLVAs Cover Wide Bandwidths

June 6, 2013
A line of SDLVAs enable detection of low-level signals to 2 GHz.

Designers of electronic-warfare (EW) and other critical signal-detection systems will want to stop at booth No. 1802 at the 2013 IMS to spend some time with the designers at Planar Monolithic Industries. PMI’s representative will show examples of their successive detection log-video amplifiers (SDLVAs), including their lines of extremely compact surface-mount SDLVAs. The company’s surface-mount SDLVA product lines include models with as much as 65-dB dynamic range from 100 MHz to 2 GHz in 14-pin flat-pack housings and models with 80-dB dynamic range from 300 MHz to 2 GHz in 16-pin flat-pack housings.

As an example, model SDLVAC-D120-70 is an SDLVA that provides a 65-dB dynamic range from 100 MHz to 2 GHz although it is optimized for use from 600 to 1350 MHz. For detection of signals from -60 to 0 dBm, the logarithmic linearity is worst-case of ±1.2 dB with typical performance of ±0.8 dB, while for detection of signals from -65 to +5 dBm, the worst-case log linearity is ±1.5 dB and typically ±1.2 dB. The amplifier offers minimum tangential signal sensitivity (TSS) of -65 dBm and typical TSS of -70 dBm. The SDLVA can handle maximum RF input power of +10 dBm. It provides maximum log video output of 2.7 V with 25-ns maximum rise time and 30-ns maximum fall time, with maximum setting time of 40 ns. The log slope is nominally 25 mV/dB. 0.75 x 0.75 x 0.135 in. with low power consumption.

Editor's Note: For more show coverage, be sure to visit Microwaves & RF's IMS 2013 page.

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