Variable Precision DSP Blocks in Stratix V Devices
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26-10-2010, 11:29 AM



.pdf   Altera Stratix-V.pdf (Size: 695.92 KB / Downloads: 50)
.pdf   Altera Stratix-V.pdf (Size: 695.92 KB / Downloads: 50)
Variable Precision DSP Blocks in Stratix V Devices

This chapter describes how the variable precision digital signal processing (DSP)
blocks in Stratix® V devices are optimized to support higher-bit precision in
high-performance DSP applications, such as radar systems that must support higher
resolution and multi-antenna architectures, wireless-base station channel cards for
MIMO processing, medical and test applications for very high-precision filtering, and
fast Fourier transforms (FFTs) functions.
You can configure a variable precision DSP block to implement one of several
operational modes to suit your application. The built-in pre-adder, coefficient bank,
multipliers, and adder/subtractor minimize the amount of external logic to
implement these functions, resulting in efficient resource usage, reduced power
consumption, improved performance, and data throughput for DSP applications.
A Stratix V variable precision DSP block maintains backward compatibility, so it can
efficiently support existing 18-bit DSP applications, such as high-definition video
processing, digital-up and down conversion, and multi-rate filtering.

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