| US 7,456,778 B2 | ||
| Method and apparatus for calibrating a multi-level current mode driver having a plurality of source calibration signals | ||
| Carl Werner, Los Gatos, Calif. (US); Mark Horowitz, Menlo Park, Calif. (US); Pak Chau, San Jose, Calif. (US); Scott Best, Palo Alto, Calif. (US); and Stefanos Sidiropoulos, Palo Alto, Calif. (US) | ||
| Assigned to Rambus Inc., Los Altos, Calif. (US) | ||
| Filed on Mar. 29, 2006, as Appl. No. 11/393,104. | ||
| Application 11/393104 is a continuation of application No. 10/903572, filed on Jul. 30, 2004, granted, now 7,093,145. | ||
| Application 10/903572 is a continuation of application No. 09/655010, filed on Sep. 05, 2000, granted, now 6,772,351, filed on Aug. 03, 2004. | ||
| Application 09/655010 is a continuation in part of application No. 09/478916, filed on Jan. 06, 2000, granted, now 7,124,221. | ||
| Claims priority of provisional application 60/158189, filed on Oct. 19, 1999. | ||
| Prior Publication US 2006/0186915 A1, Aug. 24, 2006 | ||
| Int. Cl. H03M 1/00 (2006.01); H03M 7/00 (2006.01) | ||
| U.S. Cl. 341—899 [713/300] | 24 Claims |
| 1. A multiple pulse amplitude modulated driver (multi-PAM driver), comprising:
a data signal terminal; and
first and second driver circuits coupled with the data signal terminal to drive alternating data symbols communicated by the
multi-PAM driver via the data signal terminal, wherein the first and second driver circuits include a first plurality of binary
weighted driver transistors.
|