The AM9035A from Atlanta Micro is a RF Downconverter that converts input frequencies from 18 to 44 GHz (RF) to an output frequency (IF) of 4 GHz. It is designed to deliver high performance in a low SWaP package, and is intended to complement existing RF receivers or ultra-wideband direct digitizers. This downconverter consists of a control FPGA, sub-octave preselector filters, pre-amplifiers, local oscillators, frequency converters, variable attenuators, and power/control line filtering. It can be interfaced with a tuner (tuning step size – 400 MHz) by simply providing a DC voltage, an external 100 MHz frequency reference, and a SPI control.
The AM9035A provides a gain of 25 dB with a noise figure of less than 14 dB. This downconverter has an LO leakage of -60 dBm, provides an image rejection of more than 40 dB, and has a phase noise of -80 dBc/Hz (at 1 kHz offset). It requires a DC supply of +6 V and consumes 9 W of power. This downconverter is available in a module that measures 3.7 x 3.3 x 0.7 inches and has a 2.4 mm connector for the RF port and a 2.92 mm connector for the IF port.
