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