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Specify the input and output specifications, Specify the input and output specifications –9 – Altera FIR Compiler User Manual

Page 33

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Chapter 3: Parameter Settings

3–9

Specify the Input and Output Specifications

© May 2011

Altera Corporation

FIR Compiler User Guide

Figure 3–7

shows the result after you have made the selections. Note that the side

lobes of the fixed-point frequency response decrease when you change the bit width
from 8 (the default) to 12.

Specify the Input and Output Specifications

You can specify the Number of Input Channels (that is, the number of data streams
that generate an output for each stream) and the Input Number System in the
Parameterize - FIR Compiler

page (

Figure 3–7

).

Figure 3–7. Analyzing the Coefficients