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AM79489 Datasheet Subscriber Line Interface Circuit

Manufacturer: Legerity

Overview: 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 parator 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 HPA Two-Wire Interface Ring-Trip parator Ground-Key Detector Loop Detector Input Decoder and Control C2 C3 C4 E1 HPB B(RING) Signal Transmission Power-Feed Controller Switch Control DET RD VTX RSN RDC CAS OVH RFA VBAT2 VBAT1 BGND BSWOUT BSWEN BSWTH VCC AGND/DGND Publication# 080201 Rev: E Amendment: /0 Issue Date: October 1999 ORDERING INFORMATION Standard Products Legerity standard products are available in several packages and operating ranges. The order number (Valid bination) is formed by a bination of the elements below.

Datasheet Details

Part number AM79489
Manufacturer Legerity
File Size 267.51 KB
Description Subscriber Line Interface Circuit
Datasheet AM79489_Legerity.pdf

General Description

Am79489 Subscriber Line Interface Circuit Valid binations –1 –2 –3 –4 –5 –6 Valid binations Valid binations list configurat

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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