Specifications

18 x 19 Complex Multiplier
Figure 3-10: One 18 x 19 Complex Multiplier with Two Variable Precision DSP Blocks for Cyclone V Devices
Variable-Precision DSP Block 1
Variable-Precision DSP Block 2
Input Register Bank
Imaginary Part
(ad+bc)
Multiplier
c[18..0]
b[17..0]
19
18
Multiplier
d[18..0]
a[17..0]
19
18
38
Adder
+
x
x
Output Register Bank
Input Register Bank
Real Part
(ac-bd)
d[18..0]
b[17..0]
19
18
c[18..0]
a[17..0]
19
18
38
Output Register Bank
Multiplier
Multiplier
Adder
-
x
x
Variable Precision DSP Blocks in Cyclone V Devices
Altera Corporation
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CV-52003
18 x 19 Complex Multiplier
3-14
2013.05.06