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AM79489 - Subscriber Line Interface Circuit

General Description

Am79489 Subscriber Line Interface Circuit Valid Combinations 1 2 3 4 5

Valid Combinations Valid Combinations list configurations planned to be supported in volume for this device.

Key Features

  • to 1 kHz Active state Active state, OVH = 0 Open loop, RLAC = 900 Ω, OVH = 0 0 dBm +7 dBm 0 dBm, RLAC = 600 Ω Normal and reverse polarity Normal po.

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Datasheet Details

Part number AM79489
Manufacturer Legerity
File Size 267.51 KB
Description Subscriber Line Interface Circuit
Datasheet download datasheet AM79489 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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Am79489 Subscriber Line Interface Circuit DISTINCTIVE CHARACTERISTICS          Ideal for low power sensitive applications Low standby power (normal and reverse) Automatic on-chip battery switching On-chip thermal management On-chip thermal shutdown –20 V to –60 V battery operation Programmable current limit Programmable resistive feed Programmable loop-detect threshold         Selectable overhead for metering applications Two-wire impedance set by single external impedance On-chip ring and test relay drivers and relay snubber circuits Polarity reversal (full transmission) Loop and ground-key detector Comparator for ring-trip detection Ground-start capability On-hook transmission BLOCK DIAGRAM TMG DA DB Test Relay Driver Ring Relay Driver TESTOUT RINGOUT A(TIP) C1 H