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fDesc[0] = "Analog Devices is the leader in complete direct digital synthesizer (DDS) IC products, which incorporate various features (on board comparators, RAM, PLLs, mixers and registers), making them ideal agile frequency synthesizer solutions in systems from communications to test equipment and radar. 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. The AD9859 is specified to operate over the extended industrial temperature range of –40°C to 105°C.";

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