On-chip signal transformer for ground noise isolation

Details On-chip signal transformer for ground noise isolation On-chip signal transformer for ground noise isolation

2007-10-30

2007-10-30

Dang, Phuc T. (Department: 2818)

Semiconductor device manufacturing: process

Having magnetic or ferroelectric component

C257S275000

Reexamination Certificate

active

10905480

ABSTRACT:
A mixed-signal chip having a signal transformer located between analog circuitry and digital circuitry. The signal transformer includes a primary winding electrically coupled to the analog circuitry and a secondary winding electrically coupled to the digital circuitry. The primary and secondary windings are magnetically coupled with one another via a magnetic core. The magnetic coupling between the primary and secondary windings inhibits the coupling of electrical noise between the analog and digital circuitries.

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