| US 7,548,180 B2 | ||
| Method and system for digital to analog conversion for power amplifier driver amplitude modulation | ||
| Henrik Jensen, Long Beach, Calif. (US); and Alireza Zolfaghari, Irvine, Calif. (US) | ||
| Assigned to Broadcom Corporation, Irvine, Calif. (US) | ||
| Filed on Feb. 29, 2008, as Appl. No. 12/39,993. | ||
| Application 12/039993 is a continuation of application No. 11/436348, filed on May 18, 2006, granted, now 7,362,251. | ||
| Prior Publication US 2008/0175333 A1, Jul. 24, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. H03M 3/00 (2006.01) | ||
| U.S. Cl. 341—143 [341/144] | 24 Claims |
| 1. A method for amplitude modulation in a wireless communication system, the method comprising:
oversampling, within a single integrated circuit device, each of a plurality of samples in a baseband signal;
reducing a number of bits in each of said oversampled plurality of samples so as to cause, based on a generated pseudo random
bit sequence, displacement of quantization noise that occurred as a result of said oversampling; and
low-pass filtering within said single integrated circuit device, a subsequent signal comprising said reduced number of bits.
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