AD9910It is a direct 14-bit DAC with built-in
Digital frequency synthesizer(DDS), which supports sample rates up to 1 GSPS. The AD9910 uses a patented advanced DDS technique that greatly reduces power consumption without sacrificing performance. The DDS/DAC combination forms a digitally programmable high-frequency analog output synthesizer capable of generating frequency-agile sinusoidal waveforms at frequencies up to 400 MHz.
The user has access to three signal control parameters for controlling the DDS: frequency, phase, and amplitude. The AD9910 uses a 32-bit accumulator to provide fast frequency hopping and frequency tuning resolution. At a sample rate of 1 GSPS, the tuning resolution is ~0.23 Hz. The DDS also enables fast phase and amplitude switching.
The internal control registers of the AD9910 can be programmed by the user through the serial I/O port to control the AD9910. The AD9910 integrates static RAM to support many combinations of frequency, phase, and/or amplitude modulation. The AD9910 also supports user-defined digitally controlled digital ramp operation. In this mode, frequency, phase, or amplitude changes linearly with time. The AD9910's built-in high speed parallel data input port enables direct modulation of frequency, phase, amplitude, or pole to support more advanced modulation functions.
The AD9910 operates over the extended industrial temperature range (refer to the Absolute Maximum Ratings section of the data sheet for more information).
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