| US 7,609,189 B1 | ||
| Interface for hybrid sigma-delta data converter | ||
| Cao-Thong Tu, Lausanne (Switzerland); and Heinz Maeder, Weinfelden (Switzerland) | ||
| Assigned to Marvell International Ltd., (Bermuda) | ||
| Filed on Apr. 21, 2008, as Appl. No. 12/106,902. | ||
| Claims priority of provisional application 60/912795, filed on Apr. 19, 2007. | ||
| Int. Cl. H03M 3/00 (2006.01) | ||
| U.S. Cl. 341—143 [341/155] | 18 Claims |
| 1. A hybrid sigma-delta converter, comprising:
a continuous-time (CT) circuit that processes an input signal and generates a first output signal;
an interface circuit that receives the first output signal from the CT circuit and filters the first output signal thereby
generating a second output signal; and
a discrete-time (DT) circuit that processes the second output signal received from the interface circuit,
wherein the interface circuit further filters noise generated from operation of the DT circuit.
|