描述 Description

The PBL 386 14/1 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in ISDN Network Terminal Adapters and other short loop telecommunication equipment which often are remote powered, and by that, the available power is limited. The PBL 386 14/1 has been optimized for low total line interface cost, low power and requires a minimum of external components.

Key Features

? Small footprint with SSOP package

? On-hook and Off-hook battery with automatic switching, controlled by loop current

? On-hook battery current is limited to 6 mA

? 37 mW on-hook power dissipation in active state

? Metering 0.5 Vrms (0.7 Vpeak)

? Adaptive Overhead Voltage The overhead voltage follows 1Vpeak

? Battery supply as low as -10V

? Only +5V in addition to GND and battery (VEE optional)

? Open loop voltage tracks On-hook battery

? Full longitudinal current capability during On-hook

? 43.5V open loop voltage @ -48V battery feed

? Automatic compensation for line leakage up to 5 mA

? On-hook transmission

? Programmable loop & ring-trip detector threshold

? Ground key detector

? Analog temperature guard with status exclusively viewed at detector output

? Integrated Ring Relay Driver

? Linevoltage measurement

Applications

? ISDN Network terminals

? Shortloop applications