HC5520 Datasheet | Intersil

S E M I C O N D U C T O R CO/PABX Polarity Reversal Subscriber Line Interface Circuit Description The HC5520 is a Monolithic Subscriber Line Interface Circuit (SLIC) for Analog Subscriber Line cards in Central Office and PABX switches. The HC5520 provides a prehensive set of Features for these applications including loop reversal, zero crossing ringing relay operation, long loop drive and a mutually independent setting of the receive and transmit gains, and the two wire impedance synthesis. Advanced power management Features bined with a small 44 lead MQFP package allow significant board space to be freed up for additional line circuits. The HC5520 is fabricated in a Harris...