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PBL38650-2 - Subscriber Line Interface Circuit

General Description

The PBL 386 50/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in Central Office Metering applications and other telecommunications equipment.

Key Features

  • 24-pin SSOP package.
  • Programmable two-wire signal headroom for 2.2 Vrms metering.
  • High and low battery with automatic switching.
  • Only +5 V feed in addition to battery.
  • Selectable transmit gain (0.5x or 0.25x).
  • 70 mW on-hook power dissipation in active state.
  • On-hook transmission.
  • Long loop battery feed tracks Vbat for maximum line voltage.
  • No power-up sequence.
  • 43V open loop voltage @ -48V battery feed.

📥 Download Datasheet

Datasheet Details

Part number PBL38650-2
Manufacturer Ericsson
File Size 141.16 KB
Description Subscriber Line Interface Circuit
Datasheet download datasheet PBL38650-2 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 50/2 Subscriber Line Interface Circuit Description The PBL 386 50/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in Central Office Metering applications and other telecommunications equipment. The PBL 386 50/2 has been optimized for low total line interface cost and a high degree of flexibility in different applications. The PBL 386 50/2 emulates resistive loop feed, programmable between 2x50 Ω and 2x900 Ω, with short loop current limiting adjustable to max 45 mA. In the current limited region the loop feed is nearly constant current with a slight slope corresponding to 2x30kΩ. A second, lower battery voltage may be connected to the device to reduce short loop power dissipation.