Review Article
Sigma-Delta Modulation Based Digital Filter Design Techniques in FPGA
Table 1
Area-performance comparison of single-bit FIR versus multibit filter: nonpipelined mode.
| | Device | Single-bit | Multibit | | Number of tern. coeff | LUTs | | | | LUTs | |
| | Cyclone-III | 512 | 4089 (3%) | 71.4 | 64 | 8 | 8860 (7%) | 46.2 | | 2048 | 15603 (13%) | 52.6 | 12 | 17045 (14%) | 35.3 | | 4096 | 30894 (26%) | 45.3 | 16 | 26838 (22%) | 29.1 | | 8192 | 62747 (53%) | 40.3 | 18 | 32547 (27%) | 26.5 |
| | Stratix-III | 512 | 3925 (1%) | 129.8 | 64 | 8 | 5219 (2%) | 86.5 | | 2048 | 14368 (5%) | 97.3 | 12 | 10942 (5%) | 69.1 | | 4096 | 28499 (11%) | 82.8 | 16 | 17731 (7%) | 57.5 | | 8192 | 55927 (21%) | 69.6 | 18 | 21568 (8%) | 51.2 |
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