GENERAL DESCRIPTION
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.

FEATURES
   50 mW at up to 250 MSPS internal clock speed
   100 MHz analog output
   Integrated 10-bit DAC
   0.058 Hz or better frequency resolution
   0.022° phase tuning resolution
   Programmable modulus in frequency equation
   Phase noise ≤ –135 dBc per Hz @ 1 kHz offset (DAC output)
      (<115 dBc per Hz when using on-board PLL multiplier)
   Excellent dynamic performance
      >80 dB SFDR @ 100 MHz (±100 kHz offset) AOUT
   Automatic linear frequency sweeping capability
   8 frequency or phase offset profiles
   1.8 V power supply
   Software and hardware controlled power-down
   Parallel and serial programming options
   32-lead LFCSP package
   Optional PLL REF_CLK multiplier
   Internal oscillator (can be driven by a single crystal)
   Phase modulation capability

APPLICATIONS
   Portable and handheld equipment
   Agile LO frequency synthesis
   Programmable clock generator
   FM chirp source for radar and scanning systems