Termination impedance apparatus with calibration circuit and method therefor

A termination impedance apparatus includes a variable pull-up resistor, a variable pull-down resistor, and a small-signal calibration circuit. The variable pull-up resistor is coupled between a first power supply voltage terminal and an output terminal. The variable pull-down resistor is coupled bet...

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Bibliographic Details
Main Authors HYPHER AUSTEN J, ANDERSON WARREN R, SIVAKUMAR SHYAM S
Format Patent
LanguageEnglish
Published 24.02.2015
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
INFORMATION STORAGE
PHYSICS
PULSE TECHNIQUE
STATIC STORES
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Summary:A termination impedance apparatus includes a variable pull-up resistor, a variable pull-down resistor, and a small-signal calibration circuit. The variable pull-up resistor is coupled between a first power supply voltage terminal and an output terminal. The variable pull-down resistor is coupled between the output terminal and a second power supply voltage terminal. The small-signal calibration circuit is for calibrating the variable pull-up resistor and the variable pull-down resistor to achieve a desired small-signal impedance.
Bibliography:Application Number: US201313869473