AD9859,pdf datasheet (400 MSPS

The AD9859 is a direct digital synthesizer (DDS) featuring a 10-bit DAC operaTIng at up to 400 MSPS. The AD9859 uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a digitally programmable, complete high frequency synthesizer capable of generaTIng a frequency-agile analog output sinusoidal waveform at up to 200 MHz. The AD9859 is designed to provide fast frequency

hopping and fine tuning resoluTIon (32-bit frequency tuning word). The frequency tuning and control words are loaded into the AD9859 via a serial I/O port.