Microwave up and downconverters operate over wide frequency range
Analog Devices has announced the ADMV1013 and ADMV1014, a paired highly integrated microwave upconverter and downconverter, respectively. These ICs operate over a very wide frequency range with 50 Ω-match from 24GHz up to 44GHz, facilitating ease of design and reducing the costs of building a single platform that can cover all 5Gmm Wave frequency bands including 28 and 39GHz.
Additionally, the chipset is capable of flat 1GHz RF instantaneous bandwidth supporting all broadband services as well as other ultra-wide bandwidth transceiver applications.
Each upconverter and downconverter is highly integrated, comprising I (in-phase) and Q (quadrature-phase) mixers with on-chip programmable quadrature phase-shifter configurable for direct conversion to/from baseband (operable from DC to 6GHz) or to an IF (operable from 800MHz to 6GHz).
Also included on-chip are voltage variable attenuators, transmit PA driver (in the upconverter) and a receive LNA (in the downconverter), LO buffers with x4 frequency multiplier and programmable tracking filters. Most programmability functions are controlled via an SPI serial interface. Through this port, these chips also provide a capability for each upconverter and downconverter to correct its respective quadrature phase imbalance, hence the usually difficult to suppress sideband emission can be improved from a typical value of 32dBc, by 10dB or more.
This results in an unmatched level of microwave radio performance. The combination of features provides unprecedented flexibility and ease of use while minimising external components, enabling implementation of small form factor systems such as small cells.
The highly integrated ADMV1013 microwave upconverter and the ADMV1014 microwave downconverter are well suited for the microwave radio platforms that operate in the emerging 28 and 39GHz 5G wireless infrastructure bands.
The converters’ 1GHz bandwidth capability, along with the upconverter’s OIP3 of more than 20dBm that supports stringent modulation schemes such as 1024QAM, are necessary to enable multi-Gigabit wireless data.
Moreover, the chipset benefits other applications such as satellite and earth station broadband communication links, aircraft radios, RF test equipment and radar systems. Their linearity and image rejection performance are suitable for improved range of microwave transceivers.
The ADMV1013 is offered in a 40-pin, 6x6mm LGA, and the ADMV1014 is in a 32-pin, 5x5mm LGA package.
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