Title :
Switched-current 3-bit CMOS wideband random signal generator
Author :
Chua-Chin Wang ; Tseng, Yih-Long ; Cheng, Hon-Chen ; Hu, Ron
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
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 sample track-and-hold circuit is applied in the random number generator (RNG) to achieve the goal of a wide 4.0 MHz bandwidth. TSMC 0.25 μm 1P5M CMOS process is used to carry out the proposed design. The operating clock is 10 MHz, while the measured bandwidth of the generated noise is 4 MHz.
Keywords :
CMOS integrated circuits; chaos; piecewise linear techniques; sample and hold circuits; signal generators; switched current circuits; white noise; 0.25 micron; 1.0 GHz; 10 MHz; 3 bit; 4.0 MHz; CMOS; chaotic algorithm; digital normalizer; piecewise-linear transfer function; random number generator; sample track-and-hold circuit; switched-current circuit implementation; uniform distribution; white noise; wideband random signal generator; Bandwidth; CMOS process; Chaos; Piecewise linear techniques; Random number generation; Signal generators; Switching circuits; Transfer functions; White noise; Wideband;
Conference_Titel :
Mixed-Signal Design, 2003. Southwest Symposium on
Print_ISBN :
0-7803-7778-8
DOI :
10.1109/SSMSD.2003.1190424
