Title :
A low power 5 GHz direct digital synthesizer designed in SiGe technology
Author :
Dai, Foster F. ; Chimakurthy, Lakshmi S J ; Yang, Dayu ; Huang, Jun ; Jaeger, Richard C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Auburn Univ., AL, USA
Abstract :
This paper presents a low power high-speed direct digital synthesizer (DDS), designed in a 47 GHz SiGe technology. The ROM-less DDS includes an 8-bit accumulator and an 8 bit cosine-weighted digital-to-analog converter (DAC) operating at a maximum 5 GHz clock frequency. The DDS core occupies an area of 2 mm2 and consumes less than 2 W power with a 3.3 V supply voltage. The 5 GHz MMIC provides a frequency synthesis and modulation means for L-band applications.
Keywords :
Ge-Si alloys; MMIC; adders; digital-analogue conversion; direct digital synthesis; frequency modulation; low-power electronics; semiconductor materials; 2 W; 3.3 V; 47 GHz; 5 GHz; 8 bit; DAC; MMIC; ROM-less DDS; SiGe; accumulator; carry look ahead adders; cosine-weighted digital-to-analog converter; direct digital synthesizer; frequency modulation; frequency synthesis; high-speed DDS; low power DDS; Clocks; Digital-analog conversion; Frequency conversion; Frequency modulation; Frequency synthesizers; Germanium silicon alloys; L-band; MMICs; Silicon germanium; Voltage;
Conference_Titel :
Silicon Monolithic Integrated Circuits in RF Systems, 2004. Digest of Papers. 2004 Topical Meeting on
Print_ISBN :
0-7803-8703-1
DOI :
10.1109/SMIC.2004.1398157
