Electronic Design

14-Bit DAC Blazes Along At 1.3 Gbits/s

With a 1.3-Gsample/s conversion speed, the single-channel MB86065 is the fastest 14-bit digital-to-analog converter (DAC), according to Fujitsu Microelectronics America. The fast conversion rate enables direct-IF frequencies to be guaranteed above 400 MHz. This widens the spurious-free generating region and relaxes subsequent filtering requirements. Higher direct-IF architectures are more versatile than direct conversion, allowing true platform solutions capable of rapid retargeting to different market and frequency requirements.

The MB86065 is backward compatible with the earlier MB86064, a dual, 14-bit, 1-Gsample/s DAC, and includes the same Waveform Memory Module (WMM) developed by Fujitsu. The WMM allows waveforms to be downloaded and executed on-chip, which reduces the need for a high-speed data generator for device test and evaluation. Also, the MB86065 continues to offer a superior system-partitioning solution with digital pre-processing using 0.65-µm ASIC or FPGA technology. In particular, reprogrammable implementations provide flexibility with no impact on the mixed-signal component, which defines system performance. The MB86065 comes in a Fujitsu enhanced fine-pitch ball grid array (EFBGA) package measuring 12 mm by 12 mm.


Samples MB86065 DACs and customer development kits will be available early this year. Mass production is scheduled for April.


The MB86065 costs $34 each in quantities of 10,000.


Visit us.fujitsu.com/micro/dac.

TAGS: Digital ICs
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