CO/PABX Polarity Reversal Subscriber Line Interface Circuit
Description
S E M I C O N D U C T O R
HC5520
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 comprehensive set of features for these applications including loop reversal, zero crossing rin...