Title :
Switched-current 3-bit CMOS 4.0-MHz wideband random signal generator
Author :
Wang, Chua-Chin ; Huang, Jian-Ming ; Cheng, Hon-Chen ; Hu, Ron
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
fDate :
6/1/2005 12:00:00 AM
Abstract :
The paper presents a switched-current circuit implementation of a chaotic algorithm to generate a white noise. A 3-bit digital normalizer is utilized to adjust the coefficients in the piecewise-linear transfer function such that the probability of the generated numbers will be very close to a uniform distribution. A 1.0-GHz linear track-and-hold circuit is applied in the random number generator (RNG) to achieve a wide output bandwidth. TSMC 0.25-μm one-poly five-metal CMOS process is adopted to carry out the proposed design to verify the wideband performance. When the operating clock is 10.0 MHz, the measured bandwidth of the generated noise is 4.0 MHz.
Keywords :
CMOS analogue integrated circuits; UHF integrated circuits; chaos generators; digital circuits; linear network synthesis; piecewise linear techniques; random number generation; sample and hold circuits; switched current circuits; transfer functions; white noise; 0.25 micron; 1 GHz; 10.0 MHz; 3 bit; 4.0 MHz; TSMC one-poly five-metal CMOS process; chaotic algorithm; digital normalizer; linear track-and-hold circuit; piecewise-linear transfer function; random number generator; switched-current CMOS wideband random signal generator; switched-current circuit implementation; white noise generation; Bandwidth; CMOS process; Chaos; Piecewise linear techniques; Random number generation; Signal generators; Switching circuits; Transfer functions; White noise; Wideband; Chaos; digital normalizer; long run test; random number generator; switched currents;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2005.848036
