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A low-IF RX two-point ΣΔ-modulation TX CMOS single-chip Bluetooth solution

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12 Author(s)
Durdodt, C. ; Microelectron. Dev. Centre, Infineon Technol. AG, Dusseldorf, Germany ; Friedrich, M. ; Grewing, C. ; Hammes, M.
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A new low-cost concept for a system-on-chip Bluetooth solution is proposed in this paper. The single chip includes all necessary baseband and RF parts to achieve full Bluetooth functionality and is implemented in a standard 0.25-μm CMOS technology. The two-point modulation ΣΔ fractional N phase-locked loop achieves a phase noise of -124 dBc/Hz at 3-MHz offset. The sensitivity of the embedded low-IF receiver is measured to be -82 dBm at a bit error rate of 0.1%. The power supply voltages for the digital and analog parts are internally regulated to 2.65 V. The maximum current consumption of the analog part is 60 mA

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:49 ,  Issue: 9 )