Patent · US Active

BIST to provide phase interpolator data and associated methods of operation

US7539916B2 · kind B2 · utility

2Cited by

34References

27Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Ofir Kanter · Haifa, IL
Eran Peleg · Mazkeret Batya, IL
Yesayahu Levy · Pardes Hana-Karkur, IL

Key dates

Filing date	Jun 28, 2005
Grant date	May 26, 2009
Priority date	—
Expiry date	Jan 7, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L49/90
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In an embodiment, a phase interpolator (PI) circuit is in an integrated circuit with a test latch, and the test latch is enabled by a test clock signal to under-sample the PI output clock signal from the signal source. In a method of operation, a PI output clock signal is generated in an integrated circuit, and the PI output clock signal is under-sampled in a test latch in the integrated circuit triggered by a test clock signal. Output data from the test latch is transmitted to a test device that is separated from the integrated circuit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.