应用功能: CMOS 180 MHz DDS/DAC Synthesizer The AD9851 is a highly integrated device that uses advanced DDS technology, coupled with an internal high speed, high performance D/A converter,andcomparator,toformadigitallyprogrammablefrequencysynthesizerandclockgeneratorfunction.When referenced to an accurate clock source, theAD9851 generates a stable frequency andphaseprogrammable digitizedanalog output sine wave.