Title :
A Calibrated Pulse Generator for Impulse-Radio UWB Applications
Author :
Liang, Che-Fu ; Liu, Shih-Tsai ; Liu, Shen-Iuan
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
Abstract :
A 100-Mb/s pulse position modulation generator is presented for impulse-radio ultra-wideband applications. The pulse generator provides a data rate of 100 Mb/s and a pulse width of 1 ns. To achieve an accurate pulse position and pulse width, a mixed-mode calibration circuit is used to calibrate the output buffer of the delay-locked loop. The proposed circuit has been fabricated in a 0.35-mum CMOS process. After the calibration, the measurement results show that both the pulse-width error and the pulse-position error are less than 4%
Keywords :
CMOS integrated circuits; delay lock loops; pulse generators; pulse position modulation; ultra wideband communication; 0.35 micron; 1 ns; 100 Mbit/s; CMOS process; calibrated pulse generator; delay-locked loop; impulse-radio ultra-wideband applications; mixed-mode calibration circuit; pulse position modulation generator; pulse-position error; pulse-width error; Calibration; Clocks; Delay; Pulse circuits; Pulse generation; Pulse measurements; Pulse modulation; Space vector pulse width modulation; Transceivers; Ultra wideband technology; Calibration; delay-locked loop (DLL); pulse generator; pulse-position modulation; ultra-wideband (UWB);
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2006.882889
