Franz Pengg

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This paper presents a PLL-free transmitter based on an FBAR achieving a 5μs startup time to reduce the crystal oscillator power overhead which degrades the energy efficiency for heavily duty cycled systems. The TX upconverts a FSK-modulated FBAR DCO signal with the IF output of a Phase Switching Divider (PSD) injection locked to the DCO. The PSD has(More)
This paper presents an ultra-low power miniaturized single chip transceiver operating in the ISM band at 2.4GHz. Targeting low power and minimum die size, while excluding RF-options and minimizing the count of external components for low-cost, asks for appropriate architectural choices to obtain high performance. Fast PLL locking and immediate RX-TX(More)
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