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A new implementation of the reconfigurable analog baseband low pass filter with cell-based variable transconductance amplifier

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Abstract

In this study, a new implementation of reconfigurable analog baseband (ABB) low pass filter employing cell-based variable transconductance amplifier (cell-based VTA) is presented for multi-standard transceivers. The configurability of the designed filter is supported by activating different cells and changing biasing currents of each cell. Multi-standard transceivers allow to process different protocols in a single chip. These type transceivers need reconfigurable analog elements. In this work reconfigurable ABB low-pass filter is designed to support the application of Bluetooth, CDMA2000, Wideband CDMA, and IEEE 802.11a/b/g/n wireless LANs and 2G/3G/4G. The designed filter operates between 20 kHz and 40 MHz. The minimum value of the designed filter’s third order intersection point is 21.4 dBm. The performance of the designed circuit is tested with TSMC 0.18 µm technology in CADENCE environment.

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Authors and Affiliations

  1. Department of Electrical and Electronics Engineering, Bartin University, Bartın, Turkey

    Ersin Alaybeyoğlu

  2. Department of Electronics and Communication Engineering, Istanbul Technical University, Istanbul, Turkey

    Hakan Kuntman

Authors
  1. Ersin Alaybeyoğlu
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  2. Hakan Kuntman
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Correspondence to Ersin Alaybeyoğlu.

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Alaybeyoğlu, E., Kuntman, H. A new implementation of the reconfigurable analog baseband low pass filter with cell-based variable transconductance amplifier. Analog Integr Circ Sig Process 97, 87–96 (2018). https://doi.org/10.1007/s10470-018-1241-2

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  • DOI: https://doi.org/10.1007/s10470-018-1241-2

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