GENERAL DESCRIPTION
The AD9952 is a direct digital synthesizer (DDS) featuring a 14-bit DAC operating up to 400 MSPS. The AD9952 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 200 MHz. The AD9952 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 AD9952 via a serial I/O port.
The AD9952 is specified to operate over the extended industrial temperature range of –40°C to +105°C.

FEATURES
  400 MSPS internal clock speed
  Integrated 14-bit DAC
  32-bit tuning word
  Phase noise ≤ –120 dBc/Hz @ 1 kHz offset (DAC output)
  Excellent dynamic performance
     >80 dB SFDR @ 160 MHz (±100 kHz offset) AOUT
  Serial I/O control
  1.8 V power supply
  Software and hardware controlled power-down
  48-lead TQFP/EP package
  Support for 5 V input levels on most digital inputs
  PLL REFCLK multiplier (4× to 20×)
  Internal oscillator, can be driven by a single crystal
  Phase modulation capability
  Multichip synchronization
  High speed comparator (200 MHz toggle rate)

APPLICATIONS
  Agile LO frequency synthesis
  Programmable clock generators
  Test and measurement equipment
  Acousto-optic device drivers