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概览

描述

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The Intersil HSP45116A combines a high performance quadrature numerically controlled oscillator (NCO) and a high speed 16-bit Complex Multiplier/Accumulator (CMAC) on a single IC. This combination of functions allows a complex vector to be multiplied by the internally generated (cos, sin) vector for quadrature modulation and demodulation. As shown in the Block Diagram, the HSP45116A is divided into three main sections. The Phase/Frequency Control Section (PFCS) and the Sine/Cosine Section together form a complex NCO. The CMAC multiplies the output of the Sine/ Cosine Section with an external complex vector. The inputs to the Phase/Frequency Control Section consist of a microprocessor interface and individual control lines. The phase resolution of the PFCS is 32 bits, which results in frequency resolution better than 0. 013Hz at 52MHz. The output of the PFCS is the argument of the sine and cosine. The spurious free dynamic range of the complex sinusoid is greater than 90dBc. The output vector from the Sine/Cosine Section is one of the inputs to the Complex Multiplier/Accumulator. The CMAC multiplies this (cos, sin) vector by an external complex vector and can accumulate the result. The resulting complex vectors are available through two 20-bit output ports which maintain the 90dB spectral purity. This result can be accumulated internally to implement an accumulate and dump filter. A quadrature down converter can be implemented by loading a center frequency into the Phase/Frequency Control Section. The signal to be down converted is the Vector Input of the CMAC, which multiplies the data by the rotating vector from the Sine/Cosine Section. The resulting complex output is the down converted signal. The bit position and widths for the outputs of CMAC and Complex Accumulator (ACC) are programmable.

特性

  • NCO and CMAC on One Chip
  • 52MHz Version
  • 32-Bit Frequency Control
  • 16-Bit Phase Modulation
  • 16-Bit CMAC
  • 0.013Hz Tuning Resolution at 52MHz
  • Programmable Rounding Option
  • Spurious Frequency Components < -90dBc
  • Fully Static CMOS
  • Pb-Free Plus Anneal Available (RoHS Compliant)

产品对比

应用

  • Frequency Synthesis
  • Modulation - AM, FM, PSK, FSK, QAM
  • Demodulation, PLL
  • Phase Shifter
  • Polar to Cartesian Conversions

文档

类型 文档标题 日期
数据手册 PDF 1.05 MB
EOL 通告 PDF 200 KB
其他 PDF 194 KB
其他 PDF 263 KB
应用笔记 PDF 443 KB
其他 PDF 386 KB
其他 PDF 188 KB
其他 PDF 190 KB
8 items

设计和开发

软件与工具

软件下载

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图库 ZIP 101 KB
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模型

ECAD 模块

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Diagram of ECAD Models

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