PBL38710-1 Overview
Description
The PBL 387 10/1 ring SLIC (Subscriber Line Interface Circuit) is a bipolar integrated circuit in 90 V technology which replaces the conventional transformer based analog line interface and ringrelay in FITL, WLL, ISDN-TA and other telecommunications equipment with a modern, compact solid state design. Not only is required PCB area reduced, but less component weight and height result as well.
Key Features
- Ring SLIC eliminates ring relay and conventional ring-generator
- Supports sine wave and trapezoidal ringing
- 85 V battery feed for high voltage ring signal
- On chip automatic battery switch
- Programmable battery feed characteristics
- Battery supply voltage as low as -21 V for power efficient line card designs
- Low on-hook power dissipation, 50 mW @-24 V battery
- Loop current, ring trip and ground key detection functions
- Programmable loop current detector threshold
- Programmable ring trip detector threshold
