AD9772AASTRL

Digital To Analog Converters Overview

The AD9772AASTRL is a single-supply, oversampling, 14-bit digital-to-analog converter (DAC) optimized for baseband or IF waveform reconstruction. It integrates a low-distortion DAC with a 2× digital interpolation filter and an on-chip PLL clock multiplier. The device supports input data rates up to 160 MSPS and provides differential current outputs. Key specifications include a nominal power dissipation of 253 mW to 272 mW, a full-scale output current of 20 mA, and operation over the industrial temperature range of –40°C to +85°C. It utilizes 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
• On-chip PLL clock multiplier generating internal clocks from external input
• Differential current outputs supporting 2 mA to 20 mA full-scale adjustment

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 that the ordering suffix 'R' indicates tape-and-reel packaging, distinct from the tray-packaged 'A' variant. Confirm the specific grade matches project requirements, as the datasheet lists multiple variants including the standard AD9772AACPZ and the extended temperature AD9772AACPZ-REEL7. Ensure supply voltage ranges (3.1 V to 3.5 V) align with system design constraints.

Digital To Analog Converters Selection Notes

Select this component when a 14-bit resolution and 160 MSPS update rate are required for baseband or direct IF applications. The integrated 2× interpolation filter reduces analog reconstruction filter complexity by suppressing in-band images by more than 73 dB. Consider the zero-stuffing option if enhanced direct IF performance is needed. Verify compatibility with single-ended or differential clock inputs based on jitter performance requirements.

Digital To Analog Converters Part Context

The AD9772AASTRL belongs to the AD9772A family of TxDAC+ converters manufactured by Analog Devices. This series is designed for high-performance signal synthesis in communication infrastructure. The 'ASTRL' suffix typically denotes the 48-lead LQFP package in tape-and-reel format, distinguishing it from other package options like the CPZ or ST packages available within the same product line.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers: AD9772AACPZ, AD9772AACPZ-REEL7, AD9772ABCPZ, AD9772ABCPZ-REEL7.