PBL3796-2 Overview
PBL 3796 is an analog Subscriber Line Interface Circuits (SLICs), which are fabricated in a 75 V bipolar, monolithic process. The programmable battery feed is resistive with short-loop current limiting. A switch-mode regulator reduces on-chip power dissipation in the active state.
PBL3796-2 Key Features
- On-chip switch mode regulator to minimize power dissipation
- Programmable, resistive battery feed with short-loop current limiting
- Line feed characteristics independent of battery variations
- Tip-ring polarity reversal function
- Tip and ring open circuit state; tip open with ring active state
- Detectors
- programmable loop current detector
- ring trip detector
- Ring and test relay drivers
- Line terminating impedance, plex or real, set by a simple external network