GENERAL DESCRIPTION
The AD9851 is a highly integrated device that uses advanced DDS technology, coupled with an internal high speed, high performance D/A converter, and comparator, to form a digitally programmable frequency synthesizer and clock generator function. When referenced to an accurate clock source, the AD9851 generates a stable frequency and phase-programmable digitized analog output sine wave.

FEATURES
   180 MHz Clock Rate with Selectable 6Reference Clock Multiplier
   On-Chip High Performance 10-Bit DAC and High Speed Comparator with Hysteresis
   SFDR >43 dB @ 70 MHz AOUT
   32-Bit FrequencyTuning Word
   Simplifi ed Control Interface: Parallel or Serial Asynchronous Loading Format
   5-Bit Phase Modulation and Offset Capability
   Comparator Jitter <80 ps p-p @ 20 MHz
   2.7 V to 5.25 V Single-Supply Operation
   Low Power:555 mW @ 180 MHz
   Power-Down Function,4 mW @ 2.7 V
   Ultrasmall 28-Lead SSOP Packaging
  
APPLICATIONS
   Frequency/Phase-Agile Sine Wave Synthesis
   Clock Recovery and Locking Circuitry for Digital Communications
   Digitally Controlled ADC Encode Generator
   Agile Local Oscillator Applications in Communications
   Quadrature Oscillator
   CW, AM, FM, FSK, MSK Mode Transmitter