A widely-tunable, reconfigurable CMOS analog baseband IC for software-defined radio

Masaki Kitsunezuka; Shinichi Hori; Tadashi Maeda

doi:10.1109/JSSC.2009.2023275

A widely-tunable, reconfigurable CMOS analog baseband IC for software-defined radio

Masaki Kitsunezuka, Shinichi Hori, Tadashi Maeda

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

This paper describes a reconfigurable analog baseband (ABB) for a software-defined radio (SDR). A wide variety of filter characteristics needed for SDR can be obtained by a reconfigurable filter based on a newly developed duty-cycle controlled discrete-time transconductor. The ABB, implemented in a 90 nm CMOS process, provides second- and fourth-order Butterworth, Chebyshev, and elliptic responses with bandwidths from 400 kHz to 30 MHz. The chip draws only 12 mA and achieves a P 1dB of +7∼ dBm with a 1.0 V supply. The input-referred integrated in-band noise is 0.31∼ mV rms and the die area is as small as 0.57∼mm2.

Original language	English
Article number	5226708
Pages (from-to)	2496-2502
Number of pages	7
Journal	IEEE Journal of Solid-State Circuits
Volume	44
Issue number	9
DOIs	https://doi.org/10.1109/JSSC.2009.2023275
Publication status	Published - 2009 Sept
Externally published	Yes

Keywords

Analog baseband
Discrete-time filter
Duty-cycle control
Reconfigurable filter
Software-defined radio

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/JSSC.2009.2023275

Cite this

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abstract = "This paper describes a reconfigurable analog baseband (ABB) for a software-defined radio (SDR). A wide variety of filter characteristics needed for SDR can be obtained by a reconfigurable filter based on a newly developed duty-cycle controlled discrete-time transconductor. The ABB, implemented in a 90 nm CMOS process, provides second- and fourth-order Butterworth, Chebyshev, and elliptic responses with bandwidths from 400 kHz to 30 MHz. The chip draws only 12 mA and achieves a P 1dB of +7∼ dBm with a 1.0 V supply. The input-referred integrated in-band noise is 0.31∼ mV rms and the die area is as small as 0.57∼mm2.",

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AB - This paper describes a reconfigurable analog baseband (ABB) for a software-defined radio (SDR). A wide variety of filter characteristics needed for SDR can be obtained by a reconfigurable filter based on a newly developed duty-cycle controlled discrete-time transconductor. The ABB, implemented in a 90 nm CMOS process, provides second- and fourth-order Butterworth, Chebyshev, and elliptic responses with bandwidths from 400 kHz to 30 MHz. The chip draws only 12 mA and achieves a P 1dB of +7∼ dBm with a 1.0 V supply. The input-referred integrated in-band noise is 0.31∼ mV rms and the die area is as small as 0.57∼mm2.

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A widely-tunable, reconfigurable CMOS analog baseband IC for software-defined radio

Abstract

Keywords

ASJC Scopus subject areas

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