Product/Service

2.5 GSPS Direct Digital Synthesizer with 12-Bit DAC: AS9915

Source: Analog Devices

This direct digital synthesizer is ideal for applications involving agile LO frequency synthesis, fast frequency hopping, polar modulators, programmable clock generators, FM chirp source for radar scanning systems, acousto-optic device drivers, and test and measurement equipment.

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Features:

  • 2.5 GSPS internal clock speed
  • Integrated 12-bit DAC
  • Frequency tuning resolution to 135 pHz
  • 16-bit phase tuning resolution
  • 12-bit amplitude scaling
  • Programmable modulus
  • Automatic linear and nonlinear frequency sweeping capability
  • 32-bit parallel datapath interface
  • 8 frequency/phase offset profiles
  • Phase noise: −128 dBc/Hz (1 kHz offset at 978 MHz)
  • Wideband SFDR < −57 dBc
  • Serial or parallel I/O control
  • 1.8 V/3.3 V power supplies

This direct digital synthesizer also features an 88-lead free LFCSP package, a PLL REF CLK multiplier, multichip synchronization, and software and hardware controlled power-down.

Analog Devices