High-data-rate time-to-digital converter for GFSK demodulator of low-power RF receivers

摘要

A 1.8 mW 0.12 mm2 chip area time-to-digital converter (TDC), capable of demodulating 4 Mbit/s data rate Gaussian-FSK signal, is presented. No high sampling clock is needed in this demodulator. The required input SNR of the demodulator is 18 dB.