GENERAL DESCRIPTION
The AD9852 digital synthesizer is a highly integrated device that uses advanced DDS technology, coupled with an internal high speed, high performance D/A converter to form a digitally programmable, agile synthesizer function. When referenced to an accurate clock source, the AD9852 generates a highly stable frequency-, phase-, and amplitude-programmable cosine output that can be used as an agile LO in communications, radar, and many other applications. The innovative high speed DDS core of the AD9852 provides 48-bit frequency resolution (1 μHz tuning resolution with 300 MHz SYSCLK). Maintaining 17 bits ensures excellent SFDR.

FEATURES
  300 MHz internal clock rate
  FSK, BPSK, PSK, chirp, AM operation
  Dual integrated 12-bit D/A converters
  Ultrahigh speed comparator, 3 ps rms jitter
  Excellent dynamic performance 80 dB SFDR at 100 MHz (±1 MHz) AOUT
  4× to 20× programmable reference clock multiplier
  Dual 48-bit programmable frequency registers
  Dual 14-bit programmable phase offset registers
  12-bit programmable amplitude modulation and on/off output shaped keying function
  Single-pin FSK and BPSK data interfaces
  PSK capability via I/O interface
  Linear or nonlinear FM chirp functions with single pin frequency hold function
  Frequency ramped FSK
  <25 ps rms total jitter in clock generator mode
  Automatic bidirectional frequency sweeping
  Sin(x)/x correction
  Simplified control interface
     10 MHz serial 2-wire or 3-wire SPI-compatible
     100 MHz parallel 8-bit programming
  3.3 V single supply
  Multiple power-down functions
  Single-ended or differential input reference clock
  Small, 80-lead LQFP or TQFP with exposed pad

APPLICATIONS
  Agile LO frequency synthesis
  Programmable clock generator
  FM chirp source for radar and scanning systems
  Test and measurement equipment
  Commercial and amateur RF exciter