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This paper describes an ultra-low-power RF transceiver implemented as part of a system-on-chip. The transceiver operates in the 868/915 MHz frequency band using binary FSK modulation at a 45 kbit/s data rate. It achieves -89 dBm receiver sensitivity and -6 dBm transmitter output power while consuming 1.6 mA and 1.8 mA, respectively, from a 1.2 to 1.5 V supply. It is fabricated in 0.13 mum CMOS occupying...
This paper presents a low power frequency shift keying (FSK) modulator and demodulator (MODEM) that can support over than 1 Gb/s data rate for high-speed multimedia data communications. Compared with open-loop direct modulation of a voltage-controlled oscillator (VCO), the direct injection-pulling of a VCO enables the high speed FSK modulation without suffering frequency drift problem. The FSK discriminator...
This paper presents a IV RF transceiver implemented as part of an ultra low power system-on-chip (SoC), the Sensium , for wireless body area sensor network (WBASN) applications. Operating in the 862-870 MHz European short- range-device (SRD) or the 902-928 MHz North American Industrial, Scientific & Medical (ISM) frequency bands, the transceiver utilizes digital 2-level FSK modulation at a data...
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