کنفرانس مهندسی برق ایران

صفحه اصلی / سی و یکمین کنفرانس بین المللی مهندسی برق

Ultra-Low Power Current-Mode ASK Demodulator for Contactless Smart Cards

نویسندگان :

Somayeh Yousefi¹ Mohsen Jalali²

1- دانشگاه شاهد تهران 2- دانشگاه شاهد تهران

کلمات کلیدی :

ASK demodulator،Current-mode،Contactless smart cards،Low power consumption،Modulation index

چکیده :

A fully CMOS current-mode ASK demodulator for contactless smart cards is proposed. The power consumption of the ASK demodulator has been reduced to 7μW utilizing a dc-current removal technique. Due to this technique, only the ac component of the envelope signal is amplified by the current amplifier to drastically reduce power consumption. The results reveal a modulation index of 5% with a data rate of 800kbps is supported by the ASK demodulator.

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