A high-speed impedance controlled output driver using pre-drive control for standard CMOS technology

Author

Butka, Brian

Author_Institution

Dept. of Electr. & Syst. Eng., Embry Riddle Aeronaut. Univ., Daytona Beach, FL

fYear

2007

fDate

22-25 March 2007

Firstpage

73

Lastpage

75

Abstract

This paper describes a high-speed output driver circuit architecture that incorporates impedance control to allow matching the impedance of the output driver to the impedance of a printed circuit board trace. The impedance is set via an external resistor. Unlike many existing impedance controlled output drivers, the output impedance is not controlled by varying the number of output fingers included in the output, but instead by varying the pre-drive signals provided to the output stage. The impedance of the output as the output switches is examined and the signal integrity of the output driving a typical transmission line is presented.

Keywords

CMOS integrated circuits; driver circuits; CMOS technology; impedance controlled output driver circuit; impedance matching; output switch; predrive control; printed circuit board trace; CMOS technology; Control systems; Driver circuits; Fingers; Impedance; Power transmission lines; Printed circuits; Reflection; Resistors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

SoutheastCon, 2007. Proceedings. IEEE

Conference_Location

Richmond, VA

Print_ISBN

1-4244-1029-0

Electronic_ISBN

1-4244-1029-0

Type

conf

DOI

10.1109/SECON.2007.342858

Filename

4147388