Techniques for controlling on-chip termination resistance using voltage range detection

作者: Henry Kim , Xiaobao Wang , Gopinath Rangan , Jeffrey Tyhach , Bonnie Wang

DOI:

关键词: CalibrationElectrical engineeringTransistorBuffer (optical fiber)External resistorVoltage rangeVoltageOn resistanceEngineering

摘要: Techniques are provided for controlling an on-chip termination resistance in input or output (IO) buffer using a calibration circuit. The circuit monitors the voltage between external resistor and group of transistors. When transistors is within selected range, causes effective to match as closely possible. enables another set IO so that on resistor.