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:
Feb. 19, 1991
Filed:
Apr. 16, 1990
Applicant:
Inventor:
Kianoosh Naghshineh, Menlo Park, CA (US);
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307475 ; 307443 ; 307455 ; 3072966 ;
Abstract
A TTL-to-CML translator circuit includes a TTL input stage (20), a translation chain (22), a first CML differential pair (24), a level shifter (26), and a second CML differential pair (28). The first CML differential pair (24) is coupled between a TTL ground potential (GTTL) and a negative supply potential (VEE). The second CML differential pair (28) is connected between a CML ground potential (GCML) and the negative supply potential. The level shifter (26) serves to electrically isolate the TTL ground potential and the CML ground potential, thereby producing relatively noise free CML-compatible output signals.