Thierry Melly

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New applications such as wireless integrated network sensors (WINS) require radio-frequency transceivers consuming very little power compared to usual mainstream applications, while still working in the ultra-high-frequency range. For this kind of application, the LC-tank-based local oscillator remains a significant contributor to the overall receiver power(More)
A 1 V wireless SoC embedding an RF transceiver, a sensor interface, a 6.4 MHz RISC micro-controller with an 8k instruction SRAM and a power management unit is reported. The radio supports 25 kb/s FSK and 2 kb/s OOK modulations in the 433/868 MHz bands. In the 433 MHz band, the receiver draws 2.1 mA while providing a sensitivity of -108 dBm and the(More)
Autonomous transceivers working in the ISM’ UHF hands should meet both requirements of a long battery lifetime and a small overall volume, thus implying to cut the receiving power consumption down to less than 1 mW. Ultimately, this goal will only be reached by using original topologies and lowering the supply voltage down to single battery cell operation.(More)
A sub-1V analog front-end for the FM 88-108MHz broadcasting band is presented. This front end includes a LNA, two RF amplifiers, I-Q down converters, on chip active polyphase and low-pass filters. An RSSI and limiting amplifiers are included too. The total current consumption is only 600μA for a global NF of 5dB. This front-end is suitable for FM and(More)
A 0.9 V 1.2 mA fully integrated radio data system (RDS) receiver for the 88-108 MHz FM broadcasting band is presented. Requiring only a few external components (matching network, VCO inductors, loop filter components), the receiver, which has been integrated in a standard digital 0.18 /spl mu/m CMOS technology, achieves a noise figure of 5 dB and a(More)
A broad range of high-volume consumer applications require low-power, battery operated, wireless microsystems and sensors. These systems should conciliate a sufficient battery lifetime with reduced dimensions, low cost and versatility. The design of such systems highlights many tradeoffs between performances, lifetime, cost and power consumption. Also,(More)
The WiseNET system includes an ultra low-power system-on-chip (SoC) hardware platform and WiseMAC, a low power medium access control protocol (MAC) dedicated to duty-cycled radios. Both elements have been designed to meet the specific requirements of wireless sensor networks and are particularly well suited to ad-hoc and hybrid networks. The WiseNET radio(More)
A sub-IV analog front-end for the FM 88-108MHz broadcasting band is presented. This front-end includes a LNA, two RF amplifiers, I-Q down converters, on chip active polyphase and low-pass filters. An RSSI and limiting amplifiers are included too. The total current consumption is only 600/spl mu/A for a global NF of 5dB. This front-end is suitable for FM and(More)