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

fYear

2003

fDate

23-25 Feb. 2003

Firstpage

186

Lastpage

189

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed-Signal Design, 2003. Southwest Symposium on

Print_ISBN

0-7803-7778-8

Type

conf

DOI

10.1109/SSMSD.2003.1190424

Filename

1190424