PBL38611-2 - Ericsson

PBL38611-2 Subscriber Line Interface Circuit

The PBL 386 11/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in DAML, FITL and other telecommunications equipment. The PBL 386 11/2 has been optimized for low total line interface cost and a high degree of flexibility in different applications. The PBL 386 11/2 emulates a transformer equivalent dc-feed, programmable .

Features

• Selectable overhead voltage principle
  – All adaptive: The overhead voltage follows 0.6 VPeak < signals < 5 VPeak.
  – Semi adaptive: The overhead voltage follows 2.5 VPeak < signals < 5 VPeak.
• Metering 1.6 Vrms
• High and low battery with automatic switching
• Battery supply as low as -10V
• Only +5V in addition to GND and battery (VEE optional)
• 35 mW on-hook power dissipation in active state
• Long loop battery feed tracks VBat for maximum line voltage
• 44V open loop voltage @ -48V battery feed
• Constant loop voltage for line leakage <5 mA
• On-hook transmission Ring Relay Driver RRLY .