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Synchronized Multi-Transmitter Reference Design: Method of Time-Aligning Multiple DAC3xJ8x in JESD20 (TIDA-00996)

To further increase the range, data rate, and reliability of modern mobile communications systems, system designers continue to place more emphasis on multiple-antenna transmitter systems to achieve combinations of spatial diversity and spatial multiplexing. Such implementations can further compensate for path loss and the multipath effect of transmission mediums. These implementations can also potentially increase range and data rate and improve reliability. Multiple-antenna systems with beamforming techniques also allows for better focus of transmitter energy and the system can potentially reduce the size of an antenna while increasing the transmitter range. More mobile communications systems and radar systems are starting to adopt multiple-antenna transmitters in their designs. For such multiple-antenna transmitter implementations, each individual transmitter requires digital-to-analog converters (DACs) for the digital bits to RF transmission. Multiple transmitters and the associated antenna must also be synchronized in time. The design may utilize JESD204B subclass 1 type DAC3xJ8x, which has the capability to achieve multiple DAC3xJ8x device synchronization. The DAC3xJ8x is a high-speed 16-bit DAC with up to 2.8 GSPS of sample rate. All of the capabilities of DAC3xJ8x simplify device synchronization and facilitate the design of a multiple-antenna transmitter system.


High-Speed Data Transfer High Sample Rate Digital-to-Analog Conversion JESD204B Subclass 1 Support Multi-Device Synchronization Synchronized Clock Distribution


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Synchronized Multi-Transmitter Reference Design: Method of Time-Aligning Multiple DAC3xJ8x in JESD20 TIDA-00996

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