The Intersil HSP45102 is Numerically Controlled Oscillator (NCO12) with 32-bit frequency resolution and 12-bit output. With over 69dB of spurious free dynamic range and worst case frequency resolution of 0. 009Hz, the NCO12 provides significant accuracy for frequency synthesis solutions at a competitive price. The frequency to be generated is selected from two frequency control words. A single control pin selects which word is used to determine the output frequency. Switching from one frequency to another occurs in one clock cycle, with a 6 clock pipeline delay from the time that the new control word is loaded until t4-he new frequency appears on the output. Two pins, P0-1, are provided for phase modulation. They are encoded and added to the top two bits of the phase accumulator to offset the phase in 90° increments. The 13-bit output of the Phase Offset Adder is mapped to the sine wave amplitude via the Sine ROM. The output data format is offset binary to simplify interfacing to D/A converters. Spurious frequency components in the output sinusoid are less than -69dBc. The NCO12 has applications as a Direct Digital Synthesizer and modulator in low cost digital radios, satellite terminals, and function generators.

Features

  • 33MHz, 40MHz Versions
  • 32-Bit Frequency Control
  • BFSK, QPSK Modulation
  • Serial Frequency Load
  • 12-Bit Sine Output
  • Offset Binary Output Format
  • 0.009Hz Tuning Resolution at 40MHz
  • Spurious Frequency Components <-69dBc
  • Fully Static CMOS
  • Low Cost
  • Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

  • Direct Digital Synthesis
  • Modulation
  • PSK Communications
  • Related Products HI5731 12-Bit, 100MHz D/A Converter

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Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
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Last Time Buy SOICW Tube 26
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Last Time Buy SOICW Tube 26
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descriptionDocumentation

Title language Type Format File Size Date
Datasheets & Errata
star HSP45102 Datasheet Datasheet PDF 437 KB
PCNs & PDNs
PLC21035 - End of Life Notice Product Life Cycle Notice PDF 1.17 MB
PLC17019 - Q2 Cy 17 General PLC Notice Product Life Cycle Notice PDF 320 KB
PLC17007 - Q1 Cy 17 General Product Life Cycle Notice Product Life Cycle Notice PDF 292 KB
PCN12094 - Alternate Manufacturing Site for Assembly of the Listed Intersil Packaged Products - Amkor Technology, Philippines (ATP) Product Change Notice PDF 98 KB
Other
TB318: The NCO as a Stable, Accurate Synthesizer Other PDF 263 KB