This product is a direct digital frequency synthesizer (DDS) with a built-in 14 bit DAC that supports sampling rates up to 1 GSPS. The DDS/DAC combination forms a digitally programmable high-frequency analogs output frequency synthesizer that can generate frequency-agile sinusoidal waveforms under 400MHz frequencies. The built-in high-speed parallel data input port, can realize direct modulation of frequency, phase, amplitude or pole to support more advanced modulation functions. Also supports user-defined numerically controlled digital ramp modes of operation, in this mode, frequency, phase or amplitude varies linearly with time. Features: This product is a direct digital frequency synthesizer (DDS) with a built-in 14 bit DAC that supports sampling rates up to 1 GSPS. Uses advanced DDS patented technology, which can greatly reduce power consumption without sacrificing working performance. The DDS/DAC combination forms a digitally programmable high-frequency analogs output frequency