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PBL38621-2 - Subscriber Line Interface Circuit

General Description

The PBL 386 21/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in DAML, FITL and other telecommunications equipment.

The PBL 386 21/2 has been optimized for low total line interface cost and a high degree of flexibility in different applications.

Key Features

  • 24-pin SSOP package.
  • High and low battery with automatic switching.
  • 60 mW on-hook power dissipation in active state.
  • On-hook transmission.
  • Long loop battery feed tracks Vbat for maximum line voltage.
  • Only +5 V feed in addition to battery.
  • Selectable transmit gain (1x or 0.5x).
  • No power-up sequence.
  • 44V open loop voltage @ -48V battery feed.
  • Full longitudinal current capability during on-hook state.

📥 Download Datasheet

Datasheet Details

Part number PBL38621-2
Manufacturer Ericsson
File Size 130.79 KB
Description Subscriber Line Interface Circuit
Datasheet download datasheet PBL38621-2 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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June 1999 PBL 386 21/2 Subscriber Line Interface Circuit Description The PBL 386 21/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in DAML, FITL and other telecommunications equipment. The PBL 386 21/2 has been optimized for low total line interface cost and a high degree of flexibility in different applications. The PBL 386 21/2 has constant current feed, programmable to max. 30 mA. A second lower battery voltage may be connected to the device to reduce short loop power dissipation. The SLIC automatically switches between the two battery supply voltages without need for external components or external control. The SLIC incorporates loop current, ground key and ring trip detection functions. The PBL 386 21/2 is compatible with loop start signaling.