A direct digital RF amplitude modulator

Summary, in English

This paper describes a direct digital RF amplitude modulator, which uses a 10-bit linear interpolation current steering digital to analog converter (DAC) and a Gilbert cell mixer to generate an RF amplitude modulated signal directly. The linear interpolation increases the attenuation of the DAC's image components. The low pass filter (LPF) is eliminated, and the RF transmitter structure can be simplified. This modulator is suitable for realizing the system-on-chip design. The chip has been fabricated in a 0.35μm, 3.3V digital CMOS process.

• Författare: Zhou Yijun; Jiren Yuan
• Avdelning/ar: Institutionen för elektro- och informationsteknik
• Publiceringsår: 2002
• Språk: Engelska
• Sidor: 141-144
• Publikation/Tidskrift/Serie: Proceedings - IEEE International Symposium on Circuits and Systems
• Volym: 1
• Länkar: http://dx.doi.org/10.1109/ISCAS.2002.1009797
• Dokumenttyp: Konferensbidrag
• Förlag: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Ämne: Electrical Engineering, Electronic Engineering, Information Engineering
• Nyckelord: RF amplitude modulator; System-on-chip; Gilbert cell mixer
• Conference name: 2002 IEEE International Symposium on Circuits and Systems
• Conference date: 2002-05-26 - 2002-05-29
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 0271-4310; ISSN: 2158-1525