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Registered DIGITAL RF CONVERTER, DIGITAL RF MODULATOR AND TRANSMITTER INCLUDING THE SAME

디지털 RF 컨버터 및 이를 포함하는 디지털 RF 변조기와 송신기
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Inventors
Choi Jang Hong, Yu Hyun Kyu, Park Pil Jae, Boo Hyun Ho, Park Mun Yang, Kim Seongdo, 홍성철, 심선보
Application No.
12968731 (2010.12.15)
Publication No.
20110150125 (2011.06.23)
Registration No.
8542773 (2013.09.24)
Country
UNITED STATES
Project Code
09MB2200, Development of Advanced Digital RF Technology for Next Generation Wireless Convergence Terminals, Yu Hyun Kyu
Abstract
A digital RF converter, a digital RF modulator, and a transmitter are provided. The digital RF converter includes a delta-sigma modulated bits (DSMB) sub-block that generates a current magnitude corresponding to least-significant n bits among input signals at a first sampling speed, a least-significant bit (LSB) sub-block that generates a current magnitude corresponding to intermediate k bits among the input signals at a second sampling speed lower than the first sampling speed, and a most-significant bit (MSB) sub block that generates a current magnitude corresponding to most-significant m bits among the inputs signals at the second sampling speed.
KSP Keywords
Digital RF, Least Significant Bit(LSB), RF modulator, Sub-Blocks(SB), delta-sigma