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A low distortion wide band CMOS direct digital RF amplitude modulator

Yijun, Zhou LU and Yuan, Jiren LU (2002) ESSCIRC 2002. Proceedings of the 28th European Solid-State Circuit Conference In ESSCIRC 2002. Proceedings of the 28th European Solid-State Circuit Conference p.775-778
Abstract
This paper describes a low distortion wide band CMOS direct digital RF amplitude modulator, which uses a 10-bit linear interpolation current steering digital to analog converter (DAC) and a Gilbert cell based mixer to generate an amplitude modulated RF signal directly. The linear interpolation increases the attenuation of the DAC's image components. The low pass filter (LPF) is therefore eliminated, and the RF transmitter structure is simplified. This modulator is suitable for system-on-chip design. The chip has been fabricated in a 0.35 μm, 3.3 V digital CMOS process. When the transmission signal is at 3 MHz, the distortion components are below -54 dBc at 800 MHz and -49 dBc at 1.2 GHz, respectively. The image signals are below -45 dBc... (More)
This paper describes a low distortion wide band CMOS direct digital RF amplitude modulator, which uses a 10-bit linear interpolation current steering digital to analog converter (DAC) and a Gilbert cell based mixer to generate an amplitude modulated RF signal directly. The linear interpolation increases the attenuation of the DAC's image components. The low pass filter (LPF) is therefore eliminated, and the RF transmitter structure is simplified. This modulator is suitable for system-on-chip design. The chip has been fabricated in a 0.35 μm, 3.3 V digital CMOS process. When the transmission signal is at 3 MHz, the distortion components are below -54 dBc at 800 MHz and -49 dBc at 1.2 GHz, respectively. The image signals are below -45 dBc when the transmission signal is 5.2 MHz (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
amplitude modulated RF signal, DAC image components, low pass filter elimination, system-on-chip design suitability, digital CMOS process, distortion components, transmission signal, image signals, RF transmitter structure, 3.3 V, 0.35 micron, 1.2 GHz, 3 MHz, 800 MHz, 5.2 MHz, Gilbert cell based mixer, low distortion wide band CMOS direct digital RF amplitude modulator, linear interpolation current steering digital to analog converter
in
ESSCIRC 2002. Proceedings of the 28th European Solid-State Circuit Conference
pages
775 - 778
publisher
Univ. Bologna
conference name
ESSCIRC 2002. Proceedings of the 28th European Solid-State Circuit Conference
external identifiers
  • Scopus:84893724510
ISBN
88-900847-9-0
language
English
LU publication?
yes
id
02331a14-a9cb-4caf-82d0-a7cdf09ba187 (old id 610822)
date added to LUP
2007-11-29 13:05:46
date last changed
2016-10-13 04:38:53
@misc{02331a14-a9cb-4caf-82d0-a7cdf09ba187,
  abstract     = {This paper describes a low distortion wide band CMOS direct digital RF amplitude modulator, which uses a 10-bit linear interpolation current steering digital to analog converter (DAC) and a Gilbert cell based mixer to generate an amplitude modulated RF signal directly. The linear interpolation increases the attenuation of the DAC's image components. The low pass filter (LPF) is therefore eliminated, and the RF transmitter structure is simplified. This modulator is suitable for system-on-chip design. The chip has been fabricated in a 0.35 μm, 3.3 V digital CMOS process. When the transmission signal is at 3 MHz, the distortion components are below -54 dBc at 800 MHz and -49 dBc at 1.2 GHz, respectively. The image signals are below -45 dBc when the transmission signal is 5.2 MHz},
  author       = {Yijun, Zhou and Yuan, Jiren},
  isbn         = {88-900847-9-0},
  keyword      = {amplitude modulated RF signal,DAC image components,low pass filter elimination,system-on-chip design suitability,digital CMOS process,distortion components,transmission signal,image signals,RF transmitter structure,3.3 V,0.35 micron,1.2 GHz,3 MHz,800 MHz,5.2 MHz,Gilbert cell based mixer,low distortion wide band CMOS direct digital RF amplitude modulator,linear interpolation current steering digital to analog converter},
  language     = {eng},
  pages        = {775--778},
  publisher    = {ARRAY(0x9b1f5a8)},
  series       = {ESSCIRC 2002. Proceedings of the 28th European Solid-State Circuit Conference},
  title        = {A low distortion wide band CMOS direct digital RF amplitude modulator},
  year         = {2002},
}