Research Article
A New High-Performance Digital FM Modulator and Demodulator for Software-Defined Radio and Its FPGA Implementation
Table 7
Area utilization comparison with other FM demodulator implementations [
5,
6].
| Without optimization/no. of gate | With optimization/no. of gate | Proposed design | Existing architecture | Proposed design | Existing architecture |
| Phase detector: 389 | Phase detector: 422 | Phase detector: 413 | Phase detector: 616 | Loop filter: 202 | Loop filter: 200 | Loop filter: 277 | Loop filter: 297 | FIR filter: 3213 | FIR filter: 2367 | FIR filter: 3696 | FIR filter: 3511 | DDS/NCO: 608 | DDS/NCO: 1534 | DDS/NCO: 828 | DDS/NCO: 1833 | Total FM: 4844 | Total FM: 10545 | Total FM: 6052 | Total FM: 14314 |
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