Reducing PECL voltage variation
AssigneeSun Microsystems, Inc.
InventorsClaude R. Gauthier, Pradeep R. Trivedi, Dean Liu, Brian Amick
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Abstract
A method for reducing voltage variation in a PECL based component has been developed. The method includes powering up a PECL based component, such as a receiver circuit for a PLL, and activating or inserting a shunting resistance across the power supply terminals of a PECL power supply. The shunting resistance is inserted in parallel with the PECL based component, and is controllable such that the resistance can be selectively switched ‘on’ and/or ‘off.’
Claims22
A method for reducing voltage variation in a PECL based component, comprising:
- supplying power to the PECL based component via a power supply power terminal and a power supply ground terminal;
- and
- connecting a resistance in parallel with the PECL based component, wherein the resistance is arranged to shunt the PECL based component across the power supply power terminal and the power supply ground terminal.
A method for reducing voltage variation in a PECL based component, comprising:
- a step of supplying power to the PECL based component via a power supply power terminal and a power supply ground terminal;
- and
- a step of connecting a resistance in parallel with the PECL based component, wherein the resistance is arranged to shunt the PECL based component across the power supply power terminal and the power supply ground terminal.
An apparatus for decreasing clock jitter in a PECL based component, comprising:
- a PECL based component;
- a power supply system operatively connected to the PECL based component;
- and
- a shunting resistor connected in parallel with the PECL based component, wherein the shunting resistor is arranged to shunt the PECL based component across a power terminal of the power supply system and a ground terminal of the power supply system.
An apparatus for reducing voltage variation in a PECL based component, comprising:
- means for supplying power to the PECL based component via a power supply
- power terminal and a power supply ground terminal;
- and
- means for connecting an impedance in parallel with the PECL based component, wherein the impedance is arranged to shunt the PECL based component across the power supply power terminal and the power supply ground terminal.
Dependencies are inferred from the claim text.