Altera Stratix II User's Guide download pdf (Page 6)

6 Altera Corporation

Stratix II Professional Filtering Lab

Figure 4 shows the top-level schematic for the filtering lab design. Two

numerically controlled oscillators (NCOs) generate a 1-MHz sinusoidal

signal and a 10-MHz sinusoidal signal respectively. The signals are added

together and then passed to a low-pass filter with a cut-off frequency of 3

MHz. The low-pass filter removes the 10-MHz sinusoidal signal and

allows the 1-MHz sinusoidal signal through to the fir_result output.

Figure 4. Simulink Design for Exercises 1, 2 & 3

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Altera Stratix II User's Guide Page 6