DAC3484IRKD25

Digital To Analog Converters Overview

The DAC3484IRKD25 is a quad-channel, 16-bit digital-to-analog converter (DAC) from Texas Instruments. It supports sample rates up to 1.25 GSPS with a total power consumption of 1.27 W under full operating conditions. The device features selectable 2x, 4x, 8x, and 16x digital interpolation filters with stop-band attenuation exceeding 90 dBc. It includes two independent complex mixers utilizing 32-bit NCOs for flexible carrier placement and high-performance low-jitter clock multiplying PLLs. Digital I/Q correction capabilities compensate for gain, phase, offset, and group delay errors. The component operates within an industrial temperature range of -40°C to 85°C and utilizes a differential scalable output current ranging from 10 mA to 30 mA.

Digital To Analog Converters Feature Summary

• Integrated digital interpolation filters reduce data interface complexity and simplify reconstruction filter requirements.
• On-chip complex mixing allows flexible carrier placement through independent fine mixers and power-saving coarse mixers.
• Digital Quadrature Modulator Correction (QMC) enables complete IQ compensation between channels for direct up-conversion.
• Flexible input interface includes an 8-sample FIFO, data pattern checker, and parity check for multi-DAC synchronization.

Digital To Analog Converters Applications

• Cellular base stations
• Diversity transmit systems
• Wideband communications

Digital To Analog Converters Procurement Notes

Verify the specific package configuration when ordering, as the IRKD suffix denotes the 88-pin WQFN variant. Confirm that the '25' suffix aligns with the required revision or binning specifications provided in the manufacturer's orderable addendum. Ensure compatibility with the 88-pin footprint during PCB layout planning.

Digital To Analog Converters Selection Notes

Select this component for applications requiring high dynamic range and low power consumption in multi-channel transmit architectures. Consider the available package options, including the 88-pin WQFN and 196-ball NFBGA, based on board space constraints. Evaluate the need for internal clock multiplication versus external clocking solutions to optimize jitter performance.

Digital To Analog Converters Part Context

This part belongs to the DAC3484 family of high-speed digital-to-analog converters designed by Texas Instruments. It is characterized for operation over the industrial temperature range and is intended for complex transmit architectures. The device integrates advanced digital signal processing features to simplify system design and improve spectral purity.

Digital To Analog Converters Replacement Considerations

The DAC3482 serves as a dual-channel alternative within the same family. Verify pinout compatibility and functional differences before substitution. Consult the official datasheet for detailed comparison of channel counts and feature sets.