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2010•Microelectronics & ComputerRequires access

A Large Gain Variable Range Wide-Band AGC Circuitry for a GPS Receiver

Wen Wu

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Abstract

In this paper,a large gain variable range wide-band automatic gain control circuitry (AGC) is introduced.The whole circuitry is designed in 0.35μm CMOS process,including variable gain amplifiers (VGAs),fixed gain amplifiers,gain control and DC offset cancellation part.The AGC provides a process independent gain variable range of 56dB,with a 70μs loop lock time.

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What this paper is about

In this paper,a large gain variable range wide-band automatic gain control circuitry (AGC) is introduced.The whole circuitry is designed in 0.35μm CMOS process,including variable gain amplifiers (VGAs),fixed gain amplifiers,gain control and DC offset cancellation part.The AGC provides a process independent gain variable range of 56dB,with a 70μs loop lock time.

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Available abstract

In this paper,a large gain variable range wide-band automatic gain control circuitry (AGC) is introduced.The whole circuitry is designed in 0.35μm CMOS process,including variable gain amplifiers (VGAs),fixed gain amplifiers,gain control and DC offset cancellation part.The AGC provides a process independent gain variable range of 56dB,with a 70μs loop lock time.

Key concepts: Automatic gain control, Variable-gain amplifier, Open-loop gain, Computer science, Amplifier, Dynamic range, Loop gain, Wide dynamic range

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