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Novel high-speed CMOS modulator integrated circuit design for mixed-signal VLSI micro-chips

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2 Author(s)
Leng Mun Thong ; Sch. of Electr. & Electron. Eng., Univ. Sains Malaysis, Penang, Malaysia ; Noh, M.B.M.

Sigma-delta modulator is famous for its inherent linearity, reduced anti-aliasing filter complexity and high tolerance to circuit imperfection. Band-pass sigma-delta converter is better for narrow-band signals in high-speed, high signal-to-noise ratio and high resolution system compared with ordinary architecture. Both type of converters have been applied in various architectures including quadrature architecture, two-path architecture and parallelism technique depending on the applications. This paper proposes a bandpass sigma-delta modulator for mixed-signal to achieve higher SNR and resolution at lower power consumption using VLSI technology.

Published in:

Semiconductor Electronics, 2002. Proceedings. ICSE 2002. IEEE International Conference on

Date of Conference:

19-21 Dec. 2002