BAND-PASS SIGMA-DELTA MODULATOR WITH 5 MHZ BANDWIDTH AND 80 MHz IF

• Abstract:

  In this paper we present a sigma-delta modulator for wide-band base transceiver station receivers. The modulator, based on a four-path architecture, achieves an equivalent sampling frequency of 320 MHz, although the building blocks operate at only 80 MHz. The circuit in simulation achieves 94 dB signal-to-noise ratio with a signal bandwidth of 5 MHz centered around an intermediate frequency of 80 MHz. Behavioral simulations of the complete sigma-delta modulator, including the most important non-idealities, as well as transistor-level simulations of the most critical building blocks are reported.
• Download:

  IMEKO-TC4-2002-016.pdf
• DOI:

  _unreg_tc4-2002.016

Event details:

• IMEKO TC:

  TC4
• Event name:

  TC4 Conference and Workshop 2002
• Title:

  4th International Conference on Advanced A/D and D/A Conversion Techniques and their Applications (together with 7th IMEKO TC4 Workshop on ADC Modelling and Testing)
• Place:

  Prague, CZECH REPUBLIC
• Time:

  26 June 2002 - 28 June 2002