Spectrum Microwave, an RF & Microwave Components and Systems Businesss Spectrum Microwave welcomes Sage Laboratories to the combined talents of Amplifonix, Q-Bit, EMF, Magnum, Radian, FSY, and Salisbury Engineering in one world class organization
Spectrum Microwave
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  Digitally Tuned Oscillators (DTO)
 
Spectrum Microwave offers a complete line of Digitally Tuned Oscillators (DTO). These custom designed assemblies consist of a select number of sub-band VCOs covering customer specific frequency ranges between 2GHz and 18GHz. The sub-band RF outputs are selectively switched to a common RF output port. Sufficient sub-band overlap insures full band coverage. Digital tuning is via a 16 bit, parallel input word. Several bits are used for selecting the desired sub-band and 12 to 14 bits are used for frequency tuning.
Silicon semiconductors are used to provide the best possible phase noise and post tuning drift performance. Hybrid MIC technology reduces overall package size and helps ensure overall system reliability. Fast settling time and excellent spectral purity make Spectrum DTOs ideal for simulators and other EW applications.
Features
  • Fast settling time (< 1 msec)
  • Wide frequency range (2-18 GHz)
  • Low post tuning drift (<4 MHz @ 1 msec)
  • Low spurious output (< -60 dBc)
  • Harmonics (-25 dBc max)
  • Excellent phase noise performance
    (<-65 dBc/Hz @ 100 kHz)
  • Low residual FM (<-20 dBc @ 100 kHz)
  • RF output power (+10 to +16 dBm)
  • High reliability for military applications
  • Output connectors (customer specified)
Optional Features
  • Power output status indicator
  • Phase locked module with phase lock indicator
  • Internal heater for frequency stability over temperature
  • Analog FM input
Digitally Tuned Oscillators - DTO
 
Block Diagram
Digitally Tuned Oscillator Diagram