Spartan-3 A FPGAs Optimized for DSP Applications

The new Spartan-3A DSP platform is ideal for cost sensitive DSP algorithmic and coprocessing applications requiring significant DSP performance. The new Spartan-3A DSP platform consists of two devices, the 3SD3400A and the 3SD1800A.

The 3SD3400A delivers over 30GMAC/s (30 billion multiply accumulate operations per second) and up to 2,200Mbps memory bandwidth while the 3SD1800A delivers over 20GMAC/s in a small-footprint package.

 

The industry-proven highest performance DSP

  • Parallelism with distributed memory enables sample rate to equal the clock rate up to 550 Mega Samples per Second in the VirtexTM-5 SXT devices and 250 Mega Samples per Second in the SpartanTM-3A DSP devices (slow speed grade)
  • Abundant on-chip memory 1.8 to 10.3Mbits
  • Over 350 billion multiply-accumulate operations per second (GMACS)
  • High internal memory bandwidth 1.5 to 19.3Gbps (not including distributed memory)

Product Table

3SD1800

3SD3400

DSP performance (GMAC/s)

21

32

Max. Block RAM Memory Bandwidth (Gbps)

1,512

2,268

Max. DSP Frequency (MHz)

250

250

XtremeDSP DSP48A Slices

84

126

Dedicated Multipliers

DSP48As

DSP48As

Block RAM Blocks

84

126

Block RAM (kb)

1,512

2,268

Distributed RAM (kb)

260

373

FFs/LUTs

33,280

47,744

Logic Cells

37,440

53,712

DCMs

8

8

Max. Diff. I/O Pairs

227

213

Max. User I/Os in CSG-484 package

309

309

Max. User I/Os in FGG-676 package

512

469

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