Analog Devices

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 frequency agile sinusoidal waveform at frequencies up to 400 MHz.The user has access to the three signal control parameters that control the DDS: frequency, phase, and amplitude. The DDS provides fast frequency hopping and frequency tuning resolution with its 32-bit accumulator. With a 1 GSPS sample rate, the tuning resolution is ~0.23 Hz. 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, digital ramp mode of operation. In this mode, the 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.ApplicationsAgile local oscillator (LO) frequency synthesisProgrammable clock generatorsFM chirp source for radar and scanning systemsTest and measurement equipmentAcousto-optic device driversPolar modulatorsFast frequency hopping

The AD9911 is a complete direct digital synthesizer (DDS). This device includes a high speed DAC with excellent wideband and narrowband spurious-free dynamic range (SFDR) as well as three auxiliary DDS cores without assigned digital-to-analog converters (DACs). These auxiliary channels are used for spur reduction, multitone generation, or test-tone modulation.The AD9911 is the first DDS to incorporate SpurKiller technology and multitone generation capability. Multitone mode enables the generation up to four concurrent carriers; frequency, phase and amplitude can be independently programmed. Multitone generation can be used for system tests, such as inter-modulation distortion and receiver blocker sensitivity. SpurKilling enables customers to improve SFDR performance by reducing the magnitude of harmonic components and/or the aliases of those harmonic components.Test-tone modulation efficiently enables sine wave modulation of amplitude on the output signal using one of the auxiliary DDS cores.The AD9911 can perform modulation of frequency, phase, or amplitude (FSK, PSK, ASK). Modulation is implemented by storing profiles in the register bank and applying data to the profile pins. In addition, the AD9911 supports linear sweep of frequency, phase, or amplitude for applications such as radar and instrumentation.The DDS acts as a high resolution frequency divider with the REF_CLK as the input and the DAC providing the output. The REF_CLK input can be driven directly or used in combination with an integrated REF_CLK multiplier (PLL). The REF_CLK input also features an oscillator circuit to support an external crystal as the REF_CLK source. The crystal can be used in combination with the REF_CLK multiplier. The AD9911 I/O port offers multiple configurations to provide significant flexibility. The I/O port offers an SPI-compatible mode of operation that is virtually identical to the SPI operation found in earlier Analog Devices DDS products.Flexibility is provided by four data pins (Pin SDIO_0, Pin SDIO_1, Pin SDIO_2, and Pin SDIO_3) that allow four programmable modes of I/O operation. The DAC output is supply referenced and must be terminated into AVDD by a resistor and an AVDD center-tapped transformer. The DAC has its own programmable reference to enable different full-scale currents.The DDS core (the AVDD pins and the DVDD pins) is powered by a 1.8 V supply. The digital I/O interface (SPI) operates at 3.3 V and requires that the Pin DVDD_I/O (Pin 49) be connected to 3.3 V.ApplicationsAgile local oscillatorTest and measurement equipmentCommercial and amateur radio exciterRadar and sonarTest-tone generationFast frequency hoppingClock generation

The AD9913 is a complete direct digital synthesizer (DDS) designed to meet the stringent power consumption limits of portable, handheld, and battery-powered equipment. The AD9913 features a 10-bit digital-to-analog converter (DAC) operating up to 250 MSPS. The AD9913 uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a complete, digitally-programmable, high frequency synthesizer capable of generating a frequency agile analog output sinusoidal waveform at up to 100 MHz.The AD9913 provides fast frequency hopping and fine tuning resolution. The AD9913 also offers fine resolution phase offset control. Control words are loaded into the AD9913 through the serial or parallel I/O port. The AD9913 also supports a user-defined linear sweep mode of operation for generating highly linearized swept waveforms of frequency. To support various methods of generating a system clock, the AD9913 includes an oscillator, allowing a simple crystal to be used as the frequency reference, as well as a high speed clock multiplier to convert the reference clock frequency up to the full system clock rate. For power saving considerations, many of the individual blocks of the AD9913 can be powered down when not in use.The AD9913 operates over the extended industrial temperature range of −40°C to +85°C.APPLICATIONSPortable and handheld equipmentAgile LO frequency synthesisProgrammable clock generatorFM chirp source for radar and scanning systems

The AD9914 is a direct digital synthesizer (DDS) featuring a 12‑bit DAC. The AD9914 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 1.4 GHz. The AD9914 enables fast frequency hopping and fine tuning resolution (64‑bit capable using programmable modulus mode). The AD9914 also offers fast phase and amplitude hopping capability. The frequency tuning and control words are loaded into the AD9914 via a serial or parallel input/output port.The AD9914 also supports a user defined linear sweep mode of operation for generating linear swept waveforms of frequency, phase, or amplitude. A high speed, 32-bit parallel data input port is included, enabling high data rates for polar modulation schemes and fast reprogramming of the phase, frequency, and amplitude tuning words.The AD9914 is specified to operate over the extended industrial temperature range (see the Absolute Maximum Ratings section in the data sheet).APPLICATIONSAgile LO frequency synthesisProgrammable clock generatorFM chirp source for radar and scanning systemsTest and measurement equipmentAcousto-optic device driversPolar modulatorFast frequency hopping

The AD9914S-CSL is a direct digital synthesizer (DDS) featuring a 12‑bit digital-to-analog converter (DAC). The AD9914S-CSL 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 1.4 GHz. The AD9914S-CSL enables fast frequency hopping and fine tuning resolution (64‑bit capable using programmable modulus mode). The AD9914S-CSL also offers fast phase and amplitude hopping capability. The frequency tuning and control words are loaded into the AD9914S-CSL via a serial or parallel input/output port. The AD9914S-CSL also supports a user defined linear sweep mode of operation for generating linear swept waveforms of frequency, phase, or amplitude. A high speed, 32-bit parallel data input port is included, enabling high data rates for polar modulation schemes and fast reprogramming of the phase, frequency, and amplitude tuning words.The AD9914S-CSL is specified to operate over the extended industrial temperature range (see the Absolute Maximum Ratings section in the data sheet). Additional application and technical information can be found in the Commercial Space Products Program brochure and the AD9914 data sheet.APPLICATIONSLow Earth orbit (LEO) space payloadsAgile LO frequency synthesisProgrammable clock generatorsFM chirp source for radar and scanning systemsTest and measurement equipmentAcousto-optic device driversPolar modulatorsFast frequency hopping

The AD9915 is a direct digital synthesizer (DDS) featuring a 12-bit DAC. The AD9915 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 1.0 GHz. The AD9915 enables fast frequency hopping and fine tuning resolution (64-bit capable using programmable modulus mode). The AD9915 also offers fast phase and amplitude hopping capability. The frequency tuning and control words are loaded into the AD9915 via a serial or parallel input/output port. The AD9915 also supports a user defined linear sweep mode of operation for generating linear swept waveforms of frequency, phase, or amplitude. A high speed, 32-bit parallel data input port is included, enabling high data rates for polar modulation schemes and fast reprogramming of the phase, frequency, and amplitude tuning words.The AD9915 is specified to operate over the extended industrial temperature range.APPLICATIONSAgile LO frequency synthesisProgrammable clock generatorFM chirp source for radar and scanning systemsTest and measurement equipmentAcousto-optic device driversPolar modulatorFast frequency hopping