Title :
All-digital phase-domain TX frequency synthesizer for Bluetooth radios in 0.13μm CMOS
Author :
Staszewski, Robert Bogdan ; Chih-Ming Hung ; Maggio, Ken ; Wallberg, J. ; Leipold, D. ; Balsara, Poras T.
Author_Institution :
Texas Instruments, Dallas, TX, USA
Abstract :
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.
Keywords :
Bluetooth; CMOS digital integrated circuits; digital phase locked loops; frequency shift keying; frequency synthesizers; phase noise; transceivers; Bluetooth radio; all-digital PLL; all-digital frequency synthesizer; close-in phase noise; digital amplitude control; digitally-synchronous phase domain; eye-diagram; near class-E power amplifier; phase quantization resolution; phase-domain TX frequency synthesizer; pulse-shaping TX filter; single-chip radio; wideband GFSK modulation; Arithmetic; Bluetooth; Circuits; Clocks; Delay; Detectors; Frequency conversion; Frequency synthesizers; Phase detection; Phase locked loops;
Conference_Titel :
Solid-State Circuits Conference, 2004. Digest of Technical Papers. ISSCC. 2004 IEEE International
Print_ISBN :
0-7803-8267-6
DOI :
10.1109/ISSCC.2004.1332699
