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Application Notes/
Technical Brief
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TB042
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Title:
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Interfacing a KEELOQ® Encoder to a PLL Circuit
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Name:
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TB042
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Date:
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3/19/01
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Author:
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Lucio Di Jasio
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Description:
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Most of the recently introduced advanced KEELOQ® Encoders, like the HCS362, HCS365, HCS370 and HCS412, have provisions for controlling a multiple
stage RF transmitter or a Phase Locked Loop (PLL) circuit. This Technical Brief will provide a few hints on how to interface advanced KEELOQ Encoders to widely adopted PLL ICs, namely Infineon TDA5100 and Temic U2741B.
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Keywords:
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KEELOQ, Encoder, PLL, ASK, FSK
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Related Information
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App Notes and Source Code
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TB042
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