DK-SI-5SGXEA7/ES Altera, DK-SI-5SGXEA7/ES Datasheet - Page 131
DK-SI-5SGXEA7/ES
Manufacturer Part Number
DK-SI-5SGXEA7/ES
Description
KIT DEV STRATIX V FPGA 5SGXEA7
Manufacturer
Altera
Series
Stratix® Vr
Type
FPGAr
Specifications of DK-SI-5SGXEA7/ES
Contents
Board
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
Stratix® V 5SGXEA7
Other names
544-2724
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Chapter 3: Variable Precision DSP Blocks in Stratix V Devices
Operational Mode Descriptions
Figure 3–12. 18
May 2011 Altera Corporation
b[24..0]
a[24..0]
d[17..0]
d[17..0]
b[24..0]
d[17..0]
a[24..0]
c[17..0]
c[17..0]
x 25 Complex Multiplier with Three Variable Precision DSP Blocks for Stratix V Devices
25
25
18
18
18
25
18
18
25
Variable Precision DSP Block 1
Variable Precision DSP Block 3
You can write an 18 x 25 complex multiplication with three variable precision DSP
blocks, as shown in
Equation 3–2. 18 × 25 Complex Multiplication Equation
Figure 3–12
DSP blocks.
Variable Precision DSP Block 2
(a + jb) × (c + jd) = (c - d) × a + (a - b) × d + j [(c + d) × b + (a - b) × d]
shows an 18 x 25 complex multiplication with three variable precision
Multiplier
Multiplier
Multiplier
Equation
x
x
x
3–2.
Stratix V Device Handbook Volume 2: Device Interfaces and Integration
Chainout
Chainout
Adder
Adder
+
+
44
44
[(c + d) b + (a - b) d]
[(c - d) a + (a - b) d]
3–15
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