DocumentCode :
2391239
Title :
Design of a direct digital synthesizer with an on-chip D/A-converter
Author :
Vankka, Jouko ; Waltari, Mikko ; Kosunen, Marko ; Halonen, Kari
Author_Institution :
Lab. of Signal Process. & Comput. Technol., Helsinki Univ. of Technol., Espoo, Finland
Volume :
1
fYear :
1997
fDate :
9-12 Jun 1997
Firstpage :
21
Abstract :
A 140 MHz Direct Digital Synthesizer (DDS) with an on-chip D/A-converter is designed and processed in 0.8 μm BiCMOS. The on-chip D/A-converter avoids delays and line loading caused by interchip connections. The frequency resolution of the DDS is 0.0326 Hz with a corresponding frequency switching speed of 150 ns. The digital parts of the chip are implemented with CMOS design in order to reduce power consumption. The D/A-converter is designed with BiCMOS technology to achieve 10 bit accuracy at a clock rate of 140 MHz. The chip has a complexity of 19,100 transistors with a die area of 12.2 mm2. The simulated power dissipation is 0.58 W at 140 MHz
Keywords :
BiCMOS digital integrated circuits; circuit analysis computing; clocks; digital-analogue conversion; direct digital synthesis; integrated circuit design; 0.58 W; 0.8 micron; 140 MHz; 150 ns; BiCMOS; CMOS design; chip complexity; clock rate; die area; direct digital synthesizer; frequency resolution; frequency switching speed; on-chip D/A-converter; power consumption; simulated power dissipation; BiCMOS integrated circuits; Circuit synthesis; Clocks; Digital signal processing; Filters; Frequency; Laboratories; Read only memory; Synthesizers; Table lookup;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
Type :
conf
DOI :
10.1109/ISCAS.1997.608504
Filename :
608504
Link To Document :
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