• Title/Summary/Keyword: Digital Automatic Gain Controller

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Design and Fabrication of RF evaluation board for 900MHz (900MHz대역 수신기용 RF 특성평가보드의 설계 및 제작)

  • 이규복;박현식
    • Journal of the Microelectronics and Packaging Society
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    • v.6 no.3
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    • pp.1-7
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    • 1999
  • A single RF transceiver evaluation board have been developed for the purpose of application to the 900MHz band transceiver contained RF-IC chip And environment test was evaluated. The RF-IC chipset includes LNA(Low Noise Amplifier), down-conversion mixer, AGC(Automatic Gain Controller), switched capacitor filter and down sampling mixer. The RF evaluation board for the testing of chipset contained various external matching circuits, filters such as RF/IF SAW(Surface Acoustic Wave) filter and duplexer and power supply circuits. With the range of 2.7~3.3V the operated chip revealed moderate power consumption of 42mA. The chip was well operated at the receiving frequency of 925~960MHz. Measurement result is similar to general RF receiving specification of the 900MHz digital mobile phone.

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