AD9772AASTZRL

Digital To Analog Converters Overview

The AD9772AASTZRL is a single-supply, oversampling, 14-bit digital-to-analog converter (DAC) from Analog Devices Inc., optimized for baseband or IF waveform reconstruction. It features a 2× digital interpolation filter with high- or low-pass response and an internal PLL clock multiplier. The device supports input data rates up to 160 MSPS, delivering a reconstruction passband of 67.5 MHz. Key performance metrics include a typical Spurious-Free Dynamic Range (SFDR) of 74 dBc at 25 MHz output and a nominal power dissipation of 253 mW. It operates on a single 3.1 V to 3.5 V supply and is housed in a 48-lead LQFP package.

Digital To Analog Converters Feature Summary

• 14-bit resolution with 160 MSPS maximum input data rate
• Integrated 2× FIR interpolation filter with selectable low-pass or high-pass response
• Internal PLL clock multiplier supporting 2×/4× multiplication
• Zero-stuffing option for enhanced direct IF performance

Digital To Analog Converters Applications

• Communication transmit channels
• W-CDMA base stations
• Multicarrier base stations
• Direct IF synthesis
• Wideband cable systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'RL' against the manufacturer's official documentation to confirm reel packaging specifications. Ensure compatibility with the 48-lead LQFP footprint during PCB layout. Confirm that the design accounts for the specified industrial temperature range of –40°C to +85°C and the single 3.3 V supply requirement.

Digital To Analog Converters Selection Notes

Select this component when a 14-bit DAC with integrated interpolation filtering is required for baseband or direct IF applications. The internal PLL simplifies clock distribution by generating necessary internal clocks from a lower-frequency external reference. Consider the zero-stuffing feature if higher signal levels are needed for direct IF images. Ensure the application can accommodate the differential current output topology using transformers or op-amps.

Digital To Analog Converters Part Context

The AD9772A belongs to the TxDAC+ family of high-speed DACs from Analog Devices. This series is designed for applications requiring exceptional dynamic range and flexible clocking options. The AD9772AASTZRL variant specifically denotes the tape-and-reel packaging format of the standard AD9772A device, facilitating automated assembly processes while maintaining identical electrical characteristics.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.