• DocumentCode
    1638308
  • Title

    A CMOS 64MSps 20mA 0.85mm2 baseband I/Q modulator performing 13 bits over 2MHz bandwidth

  • Author

    Pinna, Carlo ; Mecchia, Alessandro ; Nicollini, Germano

  • Author_Institution
    Cellular Terminal Div., STMicroelectronics - Telecom Group, Milano, Italy
  • fYear
    2004
  • Firstpage
    152
  • Lastpage
    155
  • Abstract
    A CMOS 64MSps 2-1-1 cascaded ΣΔ I/Q modulator optimized for WCDMA applications achieves more than 13 bits over 2MHz bandwidth. A new way for sizing cascaded ΣΔ architectures based on comparator equivalent gain, and an improved dynamic element matching method resulted into an area and power efficient modulator design. The total consumption of two modulators plus built-in voltage and current reference generators is about 20mA at 2.7V. Total active area is 0.85mm2 in a 0.35 μm CMOS technology.
  • Keywords
    CMOS integrated circuits; code division multiple access; power consumption; sigma-delta modulation; 0.35 micron; 2 MHz; 2.7 V; 20 mA; CMOS 64MSps 20mA 0.85mm2 baseband I/Q modulator; cascaded ΣΔ I/Q modulator; comparator equivalent gain; dynamic element matching method; Bandwidth; Baseband; CMOS technology; Filters; Multi-stage noise shaping; Multiaccess communication; Quantization; Standards development; Telecommunications; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    VLSI Circuits, 2004. Digest of Technical Papers. 2004 Symposium on
  • Print_ISBN
    0-7803-8287-0
  • Type

    conf

  • DOI
    10.1109/VLSIC.2004.1346540
  • Filename
    1346540
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1638308