DAC is in small footprint for smartphone testing

High resolution radar images for military and commercial radar are provided with a reduced component count, says Analog Devices, of its AD9164 DAC.

The converter can also be used for precision instrumentation equipment, such as smartphone testers. According to the company, it ensures improved accuracy as well as speed of test, contributing to faster market-ready products, with decreased tester complexity and size. Audio coverage is 6GHz, bringing the tester market one step closer to a universal wireless test platform, says the company.

The reduced component count enables element level digital beamforming advanced radar solutions. The DAC has the same performance specifications as the AD9162, but includes an on-chip direct digital synthesiser (DDS) that ensures phase-coherent fast frequency hopping of less than 300ns for up to 32 frequencies. This makes the DAC suitable for testing operations as diverse as AM broadcast band or Japanese FM band, to 5.8GHz UNII band.

A 2x interpolator (FIR85) enables configurability for lower data rates and converter clocking to reduce overall system power and ease filtering requirements. In mix-mode operation, the DAC can be configured to reconstruct RF carriers in the second and third Nyquist zones up to 7.5GHz while maintaining exceptional dynamic range.

Three package options are available, a CSP BGA measuring 8.0 x 8.0mm and 11 x 11mm and a CSP BGA SnPb measuring 11 x 11mm.

 An evaluation tool is also available.



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