TY - GEN
T1 - Merged digitally controlled oscillator and time to digital converter for TV band ADPLL
AU - Altabban, Wissam
AU - Desgreys, Patricia
AU - Petit, Hervé
AU - Kalaia, Karim Ben
AU - Du Roscoat, Laure Rolland
PY - 2010/8/31
Y1 - 2010/8/31
N2 - In this paper we present a merged Digitally Controlled Oscillator DCO and Time To Digital Converter TDC architecture. The DCO is a nine-stage interpolative ring made by NOR cells. It is designed for TV applications and it is implemented in 65nm CMOS process. The oscillator has a large frequency range, from 50MHz to 500MHz, and a 28 x 39μm2 core area. It consumes 1mA from 1.2V power supply, and it has -120dBc/Hz@5MHz phase noise for 420 MHz carrier frequency. The oscillator states are directly used to measure the delay between input and output clocks. The resulting TDC is compact, very economic in power consumption and it has a resolution that is equal to 1/18 of the oscillation period. The DCO and the TDC are used in an All Digital Phase Locked Loop ADPLL.
AB - In this paper we present a merged Digitally Controlled Oscillator DCO and Time To Digital Converter TDC architecture. The DCO is a nine-stage interpolative ring made by NOR cells. It is designed for TV applications and it is implemented in 65nm CMOS process. The oscillator has a large frequency range, from 50MHz to 500MHz, and a 28 x 39μm2 core area. It consumes 1mA from 1.2V power supply, and it has -120dBc/Hz@5MHz phase noise for 420 MHz carrier frequency. The oscillator states are directly used to measure the delay between input and output clocks. The resulting TDC is compact, very economic in power consumption and it has a resolution that is equal to 1/18 of the oscillation period. The DCO and the TDC are used in an All Digital Phase Locked Loop ADPLL.
U2 - 10.1109/ISCAS.2010.5537087
DO - 10.1109/ISCAS.2010.5537087
M3 - Conference contribution
AN - SCOPUS:77956006024
SN - 9781424453085
T3 - ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems
SP - 1987
EP - 1990
BT - ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
T2 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
Y2 - 30 May 2010 through 2 June 2010
ER -