This document describes the features and characteristics of the 500 MSPS Direct Digital Synthesizer AD9911, including patented SpurKiller technology, multitone generation, test-tone modulation, etc.
The AD9911 DDS provides a high‑speed 500 MSPS output with a 10‑bit DAC and features patented SpurKiller technology for spurious‑free performance. It supports multitone generation, test‑tone modulation, and programmable frequency, phase, and amplitude control, making it suitable for agile local oscillators, radar, sonar, and test equipment.
The device includes a 56‑lead LFCSP package, multiple I/O configurations, and extensive synchronization capabilities. Detailed specifications cover supply voltages, output current, phase‑noise performance, and timing characteristics, while the pin‑out and functional block diagrams aid system integration.
| Supply voltage (AVDD/DVDD) | 1.8 V ± 5 % |
|---|---|
| DAC full‑scale output current | 10 mA |
| Maximum SCLK frequency | 200 MHz |
The DAC can deliver a full‑scale output current of 10 mA, set by a 1.91 kΩ reference resistor.
In single‑tone mode the device dissipates about 241 mW.