HC5503PRC SLIC and the Texas Instruments TP3057A Combined PCM Codec and Filter

Texas Instruments

Published Date: 06/06/2000

Description

The network requirements of many countries require the analog subscriber line circuit (SLIC) to terminate the subscriber line with an impedance for voiceband frequencies which is complex rather than resistive (e.g. 600 Ohms). This requires that the physical resistance that is situated between the SLIC and the subscriber line comprised of protection and/or sensing resistors and the output resist