The 3. 3V family of ringing subscriber line interface circuits (SLIC) supports analog Plain Old Telephone Service (POTS) in short and medium loop length, wireless and wireline voice over broadband applications. Ideally suited for customer premise equipment, this family of products offers flexibility to designers with high ringing voltage and low power consumption system requirements. The ISL5585 family is capable of operating with 100V ringing battery supply, which translates directly to the amount of ringing voltage supplied to the subscriber. With the high operating voltage, subscriber loop lengths can be extended to 500Ω (i. e. , 5, 000 feet) and beyond, allowing this family to serve emerging Fiber In The Loop (FITL) markets. Other key features across the product family include: 3. 3V VCC operation, low power consumption, ringing using sinusoidal or trapezoidal waveforms, robust auto-detection mechanisms for when subscribers go on or off hook, and minimal external discrete application components. Integrated test access features are also offered on selected products to support loopback testing as well as line measurement tests. There are ten product offerings of the ISL5585 providing various grades of ringing battery voltage and longitudinal balance.

Features

  • 3.3V Operation
  • Onboard Ringing Generation
  • Low Standby Power Consumption (75V, 65mW)
  • Programmable Transient Current Limit
  • Improved Off Hook Software Interface
  • Integrated MTU DC Characteristics
  • Low External Component Count
  • Silent Polarity Reversal
  • Pulse Metering and On Hook Transmission
  • Tip Open Ground Start Operation
  • Balanced and Unbalanced Ringing
  • Thermal Shutdown with Alarm Indicator
  • 28 Lead Surface Mount Packaging
  • QFN Package:
  • Compliant to JEDEC PUB95 MO - 220 QFN - Quad Flat No Leads - Package Outline
  • Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile
  • Pb-Free Available (RoHS Compliant)

Applications

  • Short Loop Access Platforms
  • Voice Over Internet Protocol (VoIP)
  • Voice Over Cable and DSL Modems
  • Internet Protocol PBX
  • FiberTo The Home (FTTH)
  • Remote Subscriber Units
  • Ethernet Terminal Adapters

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active PLCC Tube 37
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 37
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 37
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 37
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 37
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 37
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 37
Availability
Active PLCC Reel 750
Availability
Active QFN Tube 43
Availability
Active QFN Reel 4000
Availability
Active QFN Reel 1000
Availability

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL5585 Datasheet Datasheet PDF 993 KB
User Guides & Manuals
ISL5585XEVAL1 User Guide Manual PDF 670 KB
ISL5585EVAL4 User Guide Manual PDF 783 KB
Application Notes & White Papers
AN9640: Glossary of Communication Terms Application Note PDF 1.24 MB
AN9922: Thermal Characterization and Board Level Modeling of the RSLIC18 in the Micro Leadframe Package Application Note PDF 1.90 MB
AN9824: SPICE Model Tutorial of the RSLIC18 AC Loop Application Note PDF 569 KB
PCNs & PDNs
PCN12087 - PLCC w/ Gold Bond Wire from ANST to ATP as Alternate Assembly Site Product Change Notice PDF 86 KB
Downloads
ISL5585EVAL4Z Design Files Design File ZIP 888 KB
Other
TB379: Thermal Characterization of Packaged Semiconductor Devices Other PDF 653 KB

Boards & Kits

Part Number Title Type Company
ISL5585EVAL4 3.3V Ringing SLIC Family for Voice Over Broadband (VOB) Evaluation Board Evaluation Renesas