Technical datasheet for the AD9851 CMOS 180 MHz DDS/DAC Synthesizer, detailing specifications, features, and applications for frequency synthesis.
The AD9851 is a highly integrated device that combines advanced Direct Digital Synthesis (DDS) technology with an internal high-speed, high-performance Digital-to-Analog Converter (DAC) and comparator. It functions as a digitally programmable frequency synthesizer and clock generator, capable of generating stable, phase-programmable digitized analog output sine waves when referenced to an accurate clock source. The device features a 32-bit frequency tuning word for high resolution and includes a unique 6x reference clock multiplier to eliminate the need for a high-speed external reference oscillator.
| DAC Resolution | 10-Bit |
|---|---|
| Power Dissipation (Max) | 555 mW |
| Operating Temperature (Industrial) | -40°C to +85°C |
| Package Type | 28-Lead SSOP |
| Supply Voltage Range | 2.7 V to 5.25 V |
The output tuning resolution is approximately 0.04 Hz with a 180 MHz system clock.
Yes, it is available in a package that is pin-for-pin compatible with the popular AD9850 125 MHz DDS.