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Analog Devices Inc. AD9914S Direct Digital Synthesizer (DDS)

Analog Devices Inc. AD9914S Direct Digital Synthesizer (DDS) features a 12-bit digital-to-analog converter (DAC). The AD9914S uses advanced DDS technology coupled with an internal high-speed, high-performance DAC to form a digitally programmable, high-frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 1.4GHz. The AD9914S enables fast frequency hopping and fine-tuning resolution (64-bit capable using programmable modulus mode).

The Analog Devices Inc. AD9914S offers amplitude hopping capability and a fast phase. The control words and frequency tuning are loaded into the AD9914S via a serial or parallel input/output port. The AD9914S 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. This feature enables high data rates for polar modulation schemes. It also reprograms the phase, frequency, and amplitude tuning words. The AD9914S operates over the extended industrial temperature range.

Features

  • 3.5GSPS internal clock speed
  • Integrated 12-bit DAC
  • Frequency tuning resolution to 190pHz
  • 16-bit phase tuning resolution
  • 12-bit amplitude scaling
  • Programmable modulus
  • Automatic linear and nonlinear frequency sweeping capability
  • 32-bit parallel datapath interface
  • Eight frequency/phase offset profiles
  • Phase noise of −128dBc/Hz (1kHz offset at 1396MHz)
  • Wideband SFDR < −50dBc
  • Serial or parallel input/output control
  • 1.8V/3.3V power supplies
  • Software and hardware controlled power-down
  • 88-lead LFCSP package
  • PLL REF CLK multiplier
  • Phase modulation capability
  • Amplitude modulation capability
  • Supports aerospace applications
  • Wafer diffusion lot traceability
  • Radiation lot acceptance test (RLAT)
  • Total ionizing dose (TID)
  • Radiation benchmark
  • Single event latch-up (SEL)

Applications

  • Low Earth orbit (LEO) space payloads
  • Agile LO frequency synthesis
  • Programmable clock generators
  • FM chirp source for scanning systems and radar
  • Test and measurement equipment
  • Acousto-optic device drivers
  • Polar modulators
  • Fast frequency hopping

Functional Block Diagram

Block Diagram - Analog Devices Inc. AD9914S Direct Digital Synthesizer (DDS)

Related Product

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Analog Devices Inc. AD9914 Direct Digital Synthesizers

 3.5GSPS Direct Digital Synthesizer with 12-bit DAC.

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Published: 2022-07-01 | Updated: 2022-07-11