GENERAL DESCRIPTION
The AD9739A is a 14-bit, 2.5 GSPS high performance RF DAC capable of synthesizing wideband signals from dc up to 3 GHz. The AD9739A is pin and functionally compatible with the AD9739 with the exception that the AD9739A does not support synchronization and is specified to operate between 1.6 GSPS and 2.5 GSPS. By elimination of the synchronization circuitry, some nonideal artifacts such as images and discrete clock spurs remain stationary on the AD9739A between power-up cycles, thus allowing for possible system calibration. AC linearity and noise performance remain the same between the AD9739 and AD9739A.

FEATURES
   Direct RF synthesis at 2.5 GSPS update rate
      DC to 1.25 GHz in baseband mode
      1.25 GHz to 3.0 GHz in mix mode
   Industry leading single/multicarrier IF or RF synthesis
   Dual-port LVDS data interface
      Up to 1.25 GSPS operation
      Source synchronous DDR clocking
   Pin-compatible with the AD9739
   Programmable output current: 8.7 mA to 31.7 mA
   Low power: 1.1 W at 2.5 GSPS

APPLICATIONS
   Broadband communications systems
      DOCSIS CMTS systems
   Military jammers
   Instrumentation, automatic test equipment
   Radar, avionics