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All-digital phase-domain TX frequency synthesizer for Bluetooth radios in 0.13μm CMOS

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6 Author(s)
Staszewski, R.B. ; Texas Instruments, Dallas, TX, USA ; Chih-Ming Hung ; Maggio, K. ; Wallberg, J.
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An all-digital frequency synthesizer for a single-chip Bluetooth radio is fabricated in 0.13μm CMOS, and operates in a digitally-synchronous phase domain that naturally incorporates wideband GFSK modulation. The synthesizer includes a pulse-shaping TX filter and near class-E PA with digital amplitude control. Close-in phase noise is -86.2dBc/Hz, integrated rms phase noise is 0.9°, and settling time is ≤ 50μs.

Published in:

Solid-State Circuits Conference, 2004. Digest of Technical Papers. ISSCC. 2004 IEEE International

Date of Conference:

15-19 Feb. 2004