Microchip Technology, Inc. Ringing SLIC LE79R79

Description
The Le79R79 is a bipolar monolithic SLIC device that support integrated (on-chip) ringing, pin-for-pin compatibility and flexibility for varying loop lengths. With the Ringing SLIC, you can achieve significant system-level cost reductions while designing innovative linecard solutions. Additional Features Through trapezoidal ringing On-chip ring-trip detector Low standby state power Battery operation: VBAT1: -40.5 to -75 V VBAT2: -19 V to VBAT1 On-chip battery switching and feed selection On-hook transmission Two-wire impedance set by single external impedance Programmable constant-current feed Programmable Open Circuit voltage Programmable loop-detect threshold Current gain = 1000 Ground-key detector Polarity reversal option available Internal VEE regulator (no external -5 V power supply required)
Description
The Le79R79 is a bipolar monolithic SLIC device that support integrated (on-chip) ringing, pin-for-pin compatibility and flexibility for varying loop lengths. With the Ringing SLIC, you can achieve significant system-level cost reductions while designing innovative linecard solutions. Additional Features Through trapezoidal ringing On-chip ring-trip detector Low standby state power Battery operation: VBAT1: -40.5 to -75 V VBAT2: -19 V to VBAT1 On-chip battery switching and feed selection On-hook transmission Two-wire impedance set by single external impedance Programmable constant-current feed Programmable Open Circuit voltage Programmable loop-detect threshold Current gain = 1000 Ground-key detector Polarity reversal option available Internal VEE regulator (no external -5 V power supply required)

Suppliers

Company
Product
Description
Supplier Links
Ringing SLIC - LE79R79 - Microchip Technology, Inc.
Chandler, AZ, United States
Ringing SLIC
LE79R79
Ringing SLIC LE79R79
The Le79R79 is a bipolar monolithic SLIC device that support integrated (on-chip) ringing, pin-for-pin compatibility and flexibility for varying loop lengths. With the Ringing SLIC, you can achieve significant system-level cost reductions while designing innovative linecard solutions. Additional Features Through trapezoidal ringing On-chip ring-trip detector Low standby state power Battery operation: VBAT1: -40.5 to -75 V VBAT2: -19 V to VBAT1 On-chip battery switching and feed selection On-hook transmission Two-wire impedance set by single external impedance Programmable constant-current feed Programmable Open Circuit voltage Programmable loop-detect threshold Current gain = 1000 Ground-key detector Polarity reversal option available Internal VEE regulator (no external -5 V power supply required)

The Le79R79 is a bipolar monolithic SLIC device that support integrated (on-chip) ringing, pin-for-pin compatibility and flexibility for varying loop lengths. With the Ringing SLIC, you can achieve significant system-level cost reductions while designing innovative linecard solutions.

Additional Features

  • Through trapezoidal ringing
  • On-chip ring-trip detector
  • Low standby state power
  • Battery operation:
    • VBAT1: -40.5 to -75 V
    • VBAT2: -19 V to VBAT1
  • On-chip battery switching and feed selection
  • On-hook transmission
  • Two-wire impedance set by single external impedance
  • Programmable constant-current feed
  • Programmable Open Circuit voltage
  • Programmable loop-detect threshold
  • Current gain = 1000
  • Ground-key detector
  • Polarity reversal option available
  • Internal VEE regulator (no external -5 V power supply required)
Supplier's Site

Technical Specifications

  Microchip Technology, Inc.
Product Category Network and Communication Chips
Product Number LE79R79
Product Name Ringing SLIC
Package Type ['VQFN', 'PLCC']
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