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A $0.5{\mu}m$ CMOS FM Radio Receiver For Zero-Crossing Demodulator  

Kim, Sung-Woong (Department of Information Communication Engineering, Handong Global University)
Kim, Young-Sik (Department of Information Communication Engineering, Handong Global University)
Publication Information
Abstract
In this paper, a FM radio receiver integrated circuit has been developed based on $0.5{\mu}m$ CMOS process for Zero-Crossing FM demodulator over the 88MHz to 108MHz band. The receiver is designed with the low-IF architecture, and includes Low Noise Amplifier(LNA), Down-Conversion Mixer, Phase Locked Loop(PLL), IF LPF, and a comparator. The measured results of the LNA and Mixer show that the conversion gain of 23.2 dB, the input PldB of -14 dBm, and the noise figure of 15 dB. The measured analog block of the LPF and comparator show the voltage gain of over 89 dB, and the IF LPF can configure the passband from 600KHz to 1.3MHz with 100KHz step through the internal control register banks. The designed FM radio receiver operates at 4.5V with the total current consumption of 15.3mA, so the total power consumption is about 68.85mW. The commercial FM radio has been successfully received.
Keywords
FM Receiver; LNA; MIXER; Zero-Crossing Demodulation;
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