Arria® V Device Handbook: Volume 1: Device Interfaces and Integration

ID 683213
Date 10/18/2023
Public
Document Table of Contents

3.6.2.4. 27 x 27 Complex Multiplier

Arria® V GZ devices support an individual 27 x 27 complex multiplication mode. You require four variable precision DSP blocks to implement an individual 27 x 27 complex multiplication mode.

You can implement the imaginary part [(a x d) + (b x c)] in the first and second variable precision DSP blocks, and you can implement the real part [(a x c) - (b x d)] in the third and fourth variable precision DSP blocks.

You can achieve the difference of two 27 x 27 multiplications by enabling the NEGATE control signal in the fourth variable precision DSP block.

Figure 47.  27 x 27 Complex Multiplier with Four Variable Precision Blocks for Arria® V GZ Devices