CO/PABX Polarity Reversal Subscriber Line Interface Circuit

The HC5520 is a Monolithic Subscriber Line Interface Circuit (SLIC) for Analog Subscriber Line cards in Central Ofce and PABX switches. The HC5520 provides a comprehensive set of features for these applications including loop reversal, zero crossing ringing relay operation, long loop drive and a mutually inde- pendent setting of the receive and transmit gains, and the two wire impedance synthesis. Advanced power manage- ment features combined with a small 44 lead MQFP pack- age allow signicant board space to be freed up for additional line circuits. By Harris Corporation
HC5520 's PackagesHC5520 's pdf datasheet
HC5520 pdf datasheet download


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HC5520 Application circuits
HC5520 circuits
This is one application circuit of HC5520,If you need more circuits,please download HC5520's pdf datasheet.


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