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A 9 GHz dual-mode digitally controlled oscillator for GSM/UMTS transceivers in 65 nm CMOS

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9 Author(s)
Chen, Y. ; Linz Center of Mechatronics Linz, Linz ; Neubauer, V. ; Liu, Y. ; Vollenbruch, U.
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A 9 GHz fully digitally controlled oscillator implemented in 65 nm CMOS technology is presented. This is the first DCO implemented at 9 GHz which covers all transmitter (TX) and receiver (RX) bands of GSM/EDGE and UMTS except Band VII. It covers a coarse tuning range from 6.35 GHz to 9.15 GHz which is realized by binary weighted switchable capacitors. The phase noise performance meets the specifications of GSM/EDGE and UMTS with a low current consumption.

Published in:

Solid-State Circuits Conference, 2007. ASSCC '07. IEEE Asian

Date of Conference:

12-14 Nov. 2007