Altera Integer Arithmetic IP Bedienungsanleitung PDF herunterladen (Seite 138)

ALTMULT_COMPLEX (Complex Multiplier)

2014.12.19

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The ALTMULT_COMPLEX megafunction implements the multiplication of two complex numbers and

offers the conventional implementation mode.

You can use the conventional representation for the following:

• All supported Altera devices

• Input data widths of any size

The ALTMULT_COMPLEX megafunction implements the multiplication of two complex numbers and

offers the following two implementation modes:

• Canonical

You can use the canonical representation for the following:

• All supported Altera devices prior to Stratix III devices. The canonical representation is no longer

supported from Stratix III onwards

• Input data widths of less than 18 bits

• Conventional

You can use the conventional representation for the following:

• All supported Altera devices

• Input data widths of any size

With the conventional representation, you can use the ALTMULT_ADD megafunction to implement the

complex multiplier by instantiating two multipliers.

The following figure shows the ports for the ALTMULT_COMPLEX megafunction.

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of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any

products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use of any information,

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