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:
Aug. 04, 2020
Filed:
Apr. 12, 2019
Nxp Usa, Inc., Austin, TX (US);
Srikanth Jagannathan, Austin, TX (US);
Kumar Abhishek, Bee Cave, TX (US);
NXP USA, Inc., Austin, TX (US);
Abstract
A circuit includes a transmitter circuit which includes a single-to-complementary circuit, a driver stage, and a pre-emphasis control circuit. The single-to-complementary circuit generates complementary output signals from a single ended input signal. The driver stage includes inputs to receive the complementary output signals, the driver stage includes a main driver circuit and a pre-emphasis driver circuit, and the pre-emphasis driver circuit is active during transitions of the complementary output signals to provide additional current for the driver stage. The pre-emphasis control circuit includes an RC pulse generation circuit in which the RC pulse generation circuit includes a capacitance and a resistance, and the RC pulse generation circuit provides, based on edges of a signal, pulses having a duration based on an RC time constant of the capacitance and resistance. The pre-emphasis driver circuit is active to provide additional current for the driver stage in response to the pulses.