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