Up & Down Converters Drive 28-/39-GHz 5G

Analog Devices’ ADMV1013 and ADMV1014 paired, highly-integrated microwave upconverter and downconverter, respectively, operate over a very wide frequency range with 50Ω-match from 24 GHz up to 44 GHz. The devices are said to facilitate ease of design and reduce the costs of building a single platform that can cover all 5G mmWave frequency bands including 28 GHz and 39 GHz. Additionally, the chipset is capable of flat 1 GHz RF instantaneous bandwidth supporting all broadband services as well as other ultra-wide bandwidth transceiver applications.

 

Each upconverter and downconverter is said to be 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 6 GHz) or to an IF (operable from 800 MHz to 6 GHz). 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.

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Most programmability functions are controlled via an SPI serial interface. Through this port, these chips also provide a unique 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 32 dBc, by 10 dB or more. This results in an unmatched level of microwave radio performance. The combination of features provides unprecedented flexibility and ease of use while minimizing external components, enabling implementation of small form factor systems such as small cells.

 

The ADMV1013 is offered in a 40-pin, 6 mm x 6 mm LGA, and the ADMV1014 is in a 32-pin, 5 mm x 5 mm LGA package. Samples and production quantities are available immediately. For more details and specs, checkout the ADMV1013 and ADMV1014 datasheets.

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