The ADMV1139A from Analog Devices is a Silicon-on-Insulator (SOI), Microwave, Upconverter, and Downconverter that operates from 37 to 50 GHz. It integrates an upconverter (transmitter), a downconverter (receiver), and a LO chain with a 4x multiplier in one chip. This up/down converter offers two modes of frequency translation – one mode is conversion from and/or to complex intermediate frequency (IF) signals, which then pass through an optional on-chip 90° IF hybrid, known as the IF mode. The other mode is a direct conversion from and/or to differential baseband in-phase/Quadrature (I/Q) inputs and outputs, known as the baseband mode. It allows the common-mode voltage of I/Q baseband output to be adjusted between 0.7 V and 1.5 V.
The ADMV1139A has an on-chip RF switch to combine transmit and receive RF ports together for time division duplex (TDD) applications. It can be used as an image-rejecting downconverter to reject the unwanted image to 26 dBc, before calibration. This converter integrates a 3/4-wire serial port interface (SPI) to adjust the I/Q phase of the LO chain for optimum sideband rejection and power down the output envelope detector to reduce power consumption when carrier feed-through optimization is not necessary. It is available in a thermally-enhanced ball grid array (BGA) package that measures 6.0 x 6.5 mm and is ideal for mmWave 5G radios, radar, electronic warfare systems, instrumentation, and point-to-point microwave radio applications.
