16-Bit Numerically Controlled Oscillator

The Intersil HSP45106/883 is a high performance 16-bit quadrature Numerically Controlled Oscillator (NCO16). The NCO16 simplifies applications requiring frequency and phase agility such as frequency-hopped modems, PSK modems, spread spectrum communications, and precision signal generators. As shown in the Block Diagram, the HSP45106/883 is divided into a Phase/Frequency Control Section (PFCS) and a Sine/Cosine Section.

Features
• This Circuit is Processed in Accordance to MIL-STD-883 and is Fully Conformant Under the Provisions of Paragraph 1.2.1.
• 25.6MHz Clock Rate
• 32-Bit Center and Offset Frequency Control
• 16-Bit Phase Control
• 8 Level PSK Supported Through Three Pin Interface
• Simultaneous 16-Bit Sine and Cosine Outputs
• Output in Two’s Complement or Offset Binary
• <0.006Hz Tuning Resolution at 25.6MHz
• Serial or Parallel Outputs
• Spurious Frequency Components < -90dBc
• 16-Bit Microprocessor Compatible Control Interface

Applications
• Direct Digital Synthesis
• Quadrature Signal Generation
• Modulation - FM, FSK, PSK (BPSK, QPSK, 8PSK)
• Precision Signal Generation