AM79212

Am79212/Am79C202 Advanced Subscriber Line Interface Circuit (ASLIC™) Device Advanced Subscriber Line Audio-Processing Circuit (ASLAC™) Device DISTINCTIVE CHARACTERISTICS

















Performs all of the functions of a CODEC-Filter Single channel architecture Performs Battery-Feed, Ring-trip, Signaling, Coding, Hybrid, and Test (BORSCHT) functions Single hardware design meets multiple country requirements through software programming GCI Interface — Control and PCM on one bus — Data rate up to 4.096 MHz Monitor of two-wire interface voltage and current for subscriber line diagnostics Low idle power per line On-hook transmission Only Battery and +5 V supplies needed Exceeds LSSGR and CCITT central office requirements Off-hook and ground-key detectors with programmable thresholds Programmable line feed characteristics independent of battery voltage Built-in voice path test modes Analog and digital hybrid balance capability Adaptive hybrid balance capability Linear power feed with power management and thermal shutdown features Abrupt and smooth polarity reversal Power cross detection in ringing and nonringing states
Software programmable — — — — — — — — — DC loop feed characteristics and current limit Loop supervision detection thresholds Off-hook detect debounce interval Two-wire AC impedance Transhybrid balance Transmit and receive gains Equalization Digital I/O pins A-law/µ-law selection










Compatible with inexpensive protectio...