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AD9953ASV Datasheet

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The AD9953 is a Direct Digital Synthesizer (DDS) featuring a 14-bit DAC operating up to 400MSPS. The AD9953 uses advanced DDS technology, coupled with an internal high-speed, high performance D/A converter to form a digitallyprogrammable, complete high-frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 200 MHz. The AD9953 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 AD9953 via a serial I/O port. The AD9953 includes an integrated 1024x32 Static RAM to support flexible frequency sweep capability in several modes.
The AD9953 is specified to operate over the extended industrial temperature range of -40° to +85°C.

   400 MSPS Internal Clock Speed
   Integrated 14-bit D/A Converter
   Programmable phase/amplitude dithering
   32-bit Tuning Word
   Phase Noise <= -125 dBc/Hz @ 1KHz offset (DAC output)
   Excellent Dynamic Performance
      80dB SFDR @ 130MHz (+/- 100KHz Offset) Aout
   Serial I/O Control
   1.8V Power Supply
   Software and Hardware controlled power down
   48-lead EPAD-TQFP package
   Linear and non-linear frequency sweeping capability
   Integrated 1024x32 word RAM
   Support for 5v input levels on most digital inputs
   PLL REFCLK multiplier (4X to 20X)
   Internal oscillator, can be driven by a single crystal
   Phase modulation capability
   Multi-Chip Synchronization

   Agile L.O. Frequency Synthesis
   FM Chirp Source for Radar and Scanning Systems
   Automotive Radar
   Test and Measurement Equipment
   PSK/FSK/Ramped FSK modulation


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