Title :
A 500-MHz ΣΔ phase-interpolation direct digital synthesizer
Author :
Finateu, Thomas ; Miro-Panades, Ivan ; Boissières, Fabrice ; Bégueret, Jean-Baptiste ; Deval, Yann ; Belot, Didier ; Badets, Franck
Author_Institution :
STMicroelectron., Crolles
Abstract :
A SigmaDelta phase-interpolation direct digital synthesizer (DDS) is presented. This DDS generates frequencies from 400 MHz up to 500 MHz. Phase interpolation uses dual slope integration on a single capacitor and current is provided by a digital to analog converter (DAC). The SigmaDelta enables high frequency resolution and shapes quantization noise. The DDS has been integrated on a 65-nm CMOS STMicroclectronics technology. The power consumption is about 29 mVV without buffers under 1.2 V for a 500-MHz operating frequency.
Keywords :
digital-analogue conversion; direct digital synthesis; interpolation; digital to analog converter; direct digital synthesizer; dual slope integration; frequency 500 MHz; frequency resolution; phase-interpolation; power 29 mW; quantization noise; size 65 nm; voltage 1.2 V; CMOS technology; Capacitors; Digital-analog conversion; Energy consumption; Frequency; Interpolation; Noise shaping; Quantization; Shape; Synthesizers;
Conference_Titel :
Solid-State Circuits Conference, 2007. ASSCC '07. IEEE Asian
Conference_Location :
Jeju
Print_ISBN :
978-1-4244-1359-1
Electronic_ISBN :
978-1-4244-1360-7
DOI :
10.1109/ASSCC.2007.4425728
