SSTL pull-up pre-driver design using regulated power supply

Details SSTL pull-up pre-driver design using regulated power supply SSTL pull-up pre-driver design using regulated power supply

2005-03-29

2005-03-29

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

C361S091100

Reexamination Certificate

active

06873503

ABSTRACT:
A SSTL memory interface pre-driver stage that uses a voltage regulator to generate a ‘virtual’ ground reference voltage is provided. The ‘virtual’ ground voltage reference, being greater than a zero volt ground voltage, allows low voltage transistors to be used, thereby improving interface performance and decreasing system power consumption. The pre-driver stage uses a biasing circuit to bias the voltage regulator, formed by a transistor arranged in a source follower configuration, to generate the ‘virtual’ ground reference voltage off which a voltage translator stage of the pre-driver stage operates to generate an output of the pre-driver stage.

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