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