Description

The PBL 386 61/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in Central Office, MUX and other telecommunications equipment. The PBL 386 61/2 has been optimized for low total line interface cost and a high degree of flexibility in different applications.

Key Features

• Selectable overhead voltage principle

– All adaptive: The overhead voltage follows 0.6 V Peak < signals < 6.2 VPeak.

– Semi adaptive: The overhead voltage follows 3.1 V Peak < signals < 6.2 VPeak.

• Metering 2.2 Vrms.

• High and low battery with automatic switching

• Battery supply as low as -10 V

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

• 39 mW on-hook power dissipation in active state

• Long loop battery feed tracks VBat for maximum line voltage

• 44 V open loop voltage @ -48 V battery feed

• Constant loop voltage for line leakage <5 mA

• On-hook transmission

• Full longitudinal current capability during on-hook

• Programmable loop & ring-trip detector threshold

• Analog temperature guard