PROGRAMMABLE CIRCUIT COMPONENT STRATEGY USING A DUAL TONE MULTIPLE FREQUENCY TECHNIQUE. Conference Paper

abstract

• A technique for controlling circuit parameters based on an efficient dual-tone multiple-frequency (DTMF) method is presented. Only two filters with a timing circuit are required instead of the common seven bandpass filters to identify a valid tone pair. The proposed DTMF receiver circuit architecture using very-low-power-consuming devices is described. Filters using operational transconductance amplifiers operating in the weak inversion region with a power consumption of less than 2 mu W are implemented in this architecture. The circuit is being fabricated in CMOS monolithic form with the experimental results to be presented as soon as they are available.

authors

• Silva-Martinez, Jose

published proceedings

• Proceedings - IEEE International Symposium on Circuits and Systems

author list (cited authors)

• Garcia, G. W., Silva-Martinez, J., & Sanchez-Sinencio, E.

complete list of authors

• Garcia, GW||Silva-Martinez, J||Sanchez-Sinencio, E

publication date

• January 1987

published in

• IEEE International Symposium on Circuits and Systems  Journal

start page

• 766

end page

• 769