HSP45116AVC-52

The HSP45116AVC-52 is one member of the HSP45116 series.The Intersil HSP45116 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 HSP45116 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.

Features of the HSP45116AVC-52 are:(1)NCO and CMAC on one chip; (2)15MHz, 25.6MHz, 33MHz Versions; (3)32-bit frequency control;(4)16-bit phase modulation;(5)16-bit CMAC;(6)0.008Hz tuning resolution at 33MHz;(7)spurious frequency components<-90dBc;(8)fully static CMOS.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 andcanaccumulatetheresult.Theresultingcomplexvectors 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.

The absolute maximum ratings of the HSP45116AVC-52 can be summarized as:(1)supply voltage:8.0V;(2)operating temperature range:0 to 70;(3)input, output or I/O voltage applied:GND -0.5V to Vcc+0.5V;(4)ESD classification:class 1;(5)operating voltage range:+4.75V to +5.25V.The NCOM can be used for amplitude, phase and frequency modulation, as well as in variations and combinations of these techniques, such as QAM. It is most effective in applications requiring multiplication of a rotating complex sinusoid by an external vector. These include AM and QAM modulators and digital receivers.The NCOM implements AM and QAM modulation on a single chip, and is a element in demodulation,where it performs complex down conversion. It can be combined with the intersil HSP43220 decimating digital filter to form the front end of a digital receiver.