| US 7,525,372 B2 | ||
| Noise shaped n th order filter | ||
| Hassan Elwan, Lake Forest, Calif. (US); Amr Fahim, Newport Beach, Calif. (US); Aly Ismail, Irvine, Calif. (US); and Edward Youssoufian, Irvine, Calif. (US) | ||
| Assigned to Newport Media, Inc., Lake Forest, Calif. (US) | ||
| Filed on Mar. 08, 2007, as Appl. No. 11/683,651. | ||
| Prior Publication US 2008/0220737 A1, Sep. 11, 2008 | ||
| Int. Cl. H03B 1/00 (2006.01); H03K 5/00 (2006.01) | ||
| U.S. Cl. 327—552 [327/556] | 20 Claims |
| 1. A low noise nth order filter comprising:
a plurality of nested general immittance converters (GICs) directly connected to one another in successive GIC stages, wherein
a transfer function of said successive GIC stages comprise at least one notch;
a passive pole directly connected to an input of only a first one of said plurality of GICs: and
a capacitor directly connected to each of the GICs,
wherein a first successive GIC stage begins at a first node located in between a previous GIC stage and a corresponding capacitor
directly connected to said previous GIC stage.
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