Chapter 1: Overview for the Arria V Device Family
1–13
Variable-Precision DSP Block
Table 1–8 lists the accommodation of different configurations in a DSP block.
Table 1–8. Variable-Precision DSP Block Configurations for Arria V Devices
Multiplier Size (Bit)
Three 9 x 9
DSP Block Resources
Expected Usage
1 variable-precision DSP block
1 of variable-precision DSP block
Low precision fixed point for video applications
Medium precision fixed point in FIR filters
Two18 x 19
Two 18 x 19 with
accumulate
1 variable-precision DSP block
1 variable-precision DSP block
FIR filters
One 27 x 27
Single precision floating point
Table 1–9 lists the number of multipliers in Arria V devices.
Table 1–9. Number of Multipliers in Arria V Devices
Independent Input and Output
Multiplications Operator
18 x 18
Multiplier
Adder
Variable
18 x 19
Multiplier
Adder Mode
Variants
Devices
Precision
Summed
with 36-bit
Input
9 x 9
18 x 19
Multipliers
27 x 27
Multipliers
DSP Blocks
Multipliers
5AGXA1
5AGXA3
5AGXA5
5AGXA7
5AGXB1
5AGXB3
5AGXB5
5AGXB7
5AGTD3
5AGTD7
5ASXB3
5ASXB5
5ASTD3
5ASTD5
240
396
720
480
240
396
240
396
240
396
1,188
1,800
2,400
2,760
3,135
3,276
3,417
3,135
3,417
2,427
3,204
2,427
3,204
792
600
1,200
1,600
1,840
2,090
2,184
2,278
2,090
2,278
1,618
2,136
1,618
2,136
600
600
600
800
800
800
800
Arria V GX
920
920
920
920
1,045
1,092
1,139
1,045
1,139
809
1,045
1,092
1,139
1,045
1,139
809
1,045
1,092
1,139
1,045
1,139
809
1,045
1,092
1,139
1,045
1,139
809
Arria V GT
Arria V SX
Arria V ST
1,068
809
1068
809
1,068
809
1,068
809
1,068
1068
1,068
1,068
February 2012 Altera Corporation
Arria V Device Handbook
Volume 1: Device Overview and Datasheet
ALTERA [ ALTERA CORPORATION ]
