The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2002
Filed:
Sep. 05, 2001
David Kwong, Fremont, CA (US);
Pericom Semiconductor Corp., San Jose, CA (US);
Abstract
A differential amplifier has a boosted sink current that is turned on by a pulse generator when the output is driven low. This boosted sink current quickly lowers the output to the voltage-output-low VOL level. After the pulse ends, the sink current ends and power is reduced to a lower standby level. A differential pair of switches receives the true and complement data. One switch is closed when the data is true, connecting a current source that sets the standby voltage-output-high VOH level. The other switch is closed when the complement data is high, connecting another current source that sets the standby VOL level. A second differential amplifier with reversed true and complement data drives a complement output for a differential signaling transmitter, such as for a pseudo-emitter-coupled logic (PECL) driver.