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.
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Type | Title | Date |
Datasheet | PDF 437 KB | |
End Of Life Notice | PDF 1.17 MB | |
End Of Life Notice | PDF 320 KB | |
End Of Life Notice | PDF 292 KB | |
Product Change Notice | PDF 98 KB | |
Other | PDF 263 KB | |
6 items
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Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Pkg. Type |
Carrier Type |
MOQ |
Buy / Sample |
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Part Number | ||||
HSP45102SC-33 circleObsolete |
SOICW | Tube | 104 | |
HSP45102SC-33Z circleObsolete |
SOICW | Tube | 104 | |
HSP45102SC-40Z circleObsolete |
SOICW | Tube | 104 | |
SOICW | Reel | 1000 | ||
HSP45102SI-33Z circleObsolete |
SOICW | Tube | 104 |