AD9910

The AD9910 is a direct digital synthesizer (DDS) featuring an integrated 14-bit DAC and supporting sample rates up to 1 GSPS. The AD9910 employs an advanced, proprietary DDS technology that provides a significant reduction in power consumption without sacrificing performance. The DDS/DAC combination forms a digitally programmable, high frequency, analog output synthesizer capable of generating a frequencyagile sinusoidal waveform at frequencies up to 400 MHz. The user has access to the three signal control parameters used to control the DDS: frequency, phase and amplitude. The DDS provides fast frequency hopping and frequency tuning resolution with its 32-bit accumulator. With a 1GSPS sample rate, the tuning resolution is ~0.23Hz. The DDS also enables fast phase and amplitude switching capability.

The AD9910 is controlled by programming its internal control registers via a serial I/O port. The AD9910 includes an integrated static RAM to support various combinations of frequency, phase and/or amplitude modulation. The AD9910 also supports a user defined, digitally controlled, linear sweep mode of operation. In this mode frequency, phase or amplitude can be varied linearly over time. For more advanced modulation functions, a high speed parallel data input port is included to enable direct frequency, phase, amplitude, or polar modulation.

The AD9910 is specified to operate over the extended industrial temperature range (see Absolute Max Ratings table).