A 0.5-6 MHz Active-RC LPF with Fine Gain Steps Using Binary Interpolated Resistor Banks

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概要

• 論文の詳細を見る

• This paper proposes an active-RC filter that achieves a wide pseudo-continuous bandwidth-tuning range and a wide gain range with fine steps using a novel switched resistor architecture. A channel-selection filter with the proposed resistor bank is designed for a multi-mode mobile-TV receiver with the 6th order Chebyshev-I topology. The bandwidth, 0.5-6MHz with 5% steps, supports multiple mobile-TV standards with sufficient margins for process and temperature variations. The filter also accomplishes a 30-dB variable gain range with 6-dB steps, and it relaxes the dynamic range requirement of a succeeding programmable gain amplifier. The power consumption of the filter, 3.4-5.0mW, is adjustable according to the bandwidth and the signal level. The filter was fabricated with on-chip bandwidth-calibration circuitry in 0.18-µm CMOS and occupied 0.81mm2.

• 2011-08-01

著者

• Beck Sungho

  Georgia Institute Of Technology

• KIM Stephen

  Georgia Institute of Technology

• LIM Kyutae

  Georgia Electronic Design Center

• JEONG Seongheon

  Future Communication Ics Inc.

• MIN Sunki

  Future Communication Ics Inc.

• HWANG Myung-Woon

  Future Communication Ics Inc.

• TENTZERIS Emmanouil

  Georgia Institute of Technology

関連論文

• A New Power-Consumption Optimization Technique for Two-Stage Operational Amplifiers
• A 0.5-6 MHz Active-RC LPF with Fine Gain Steps Using Binary Interpolated Resistor Banks

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