A 0.65-to-1.4nJ/burst 3-to-10GHz UWB Digital TX in 90nm CMOS for IEEE 802.15.4a

Author

Ryckaert, Julien ; Van der Plas, G. ; De Heyn, V. ; Desset, Claude ; Vanwijnsberghe, Geert ; Van Poucke, B. ; Craninck, Jan

Author_Institution

IMEC, Leuven

fYear

2007

fDate

11-15 Feb. 2007

Firstpage

120

Lastpage

591

Abstract

A digital UWB TX that supports the IEEE 802.15.4a standard is presented. A digitally controlled oscillator produces the RF carrier for all bands between 3 and 10GHz. It is embedded in a phase-aligned frequency-locked loop that starts up in 2ns and thus exploits the signal duty-cycle that can be as low as 3%. A digital modulator shapes the BPSK symbols at the required 500MHz chip rate. The energy requirements varies from 0.65nJ at 3.5GHz up to 1.4nJ/burst at 10GHz in 90nm 1V digital CMOS

Keywords

CMOS digital integrated circuits; IEEE standards; frequency locked loops; modulators; phase shift keying; radio transmitters; ultra wideband technology; 0.65 nJ; 1 V; 2 ns; 3 to 10 GHz; 500 MHz; 90 nm; BPSK symbols; CMOS integrated circuit; IEEE 802.15.4a standard; RF carrier; UWB digital transmitter; digital CMOS; digital modulator; digitally controlled oscillator; phase-aligned frequency-locked loop; signal duty-cycle; Binary phase shift keying; Clocks; Degradation; Digital control; Jitter; Modulation coding; Oscillators; Physical layer; Radio frequency; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International

Conference_Location

San Francisco, CA

ISSN

0193-6530

Print_ISBN

1-4244-0853-9

Electronic_ISBN

0193-6530

Type

conf

DOI

10.1109/ISSCC.2007.373617

Filename

4242294