Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

LE9540

Dual Ch Ringing SLIC with Serial Interface

Status: In Production

View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The Le9540 Dual Ringing SLIC device is a dual-channel device optimized to provide battery feed, ringing, and supervision on voice loops found in short-loop VoIP applications. This device is optimized with a serial bus to interface to the Broadcom BCM3383/84/85/90 cable SoCs and BCM6818/28/38 PON SoCs. The Le9540 device operates independently from a single, user-adjusted battery and a +3.3 V VCC per channel. Each channel provides forward and reverse battery feed, voice transmission, power ringing, an ultra low-power scan state, ground start (Tip open), and a disconnect state. A test load switch is also included to support integrated test algorithms.

Additional Features
  • Dual Architecture
    • Two fully independent integrated SLIC channel
    • No impulse noise crosstalk in any operation states to the listening channel in forward or reverse active states
  • Two Power Supplies
    • Single user adjusted battery input per channel
    • 3.3 V for VCC
  • High Voltage Design
    • Meets Comcast Ringing requirements without clipping distortion
    • Robust solution with no damage during extended ringing cycles or switching the ringer on and off
    • Allows use of 50 Ohm protection resistors and lower cost lower current rated protectors
    • Up to -145 V ringing battery Le9540D
    • Up to -100 V ringing battery Le9540C
  • Channel Independent Eight Operating States
    • Scan state for minimal power dissipation
    • Active Forward Battery (Default Power Up State)
    • Active Forward Battery ICV
    • Active Reverse Battery
    • Tip Open Ground Start
    • Wink
    • Ringing
    • Disconnect (Default Power Up Mode)
  • Per Channel Ringing Inputs for Optimized Interface to BCM SoC Devices
    • Allows to accept driving signals from per channel voice outputs as well as from PWM outputs
  • Ultra-Low On-Hook Power
  • Loop Start, Ring Trip, and Ground Start Detections
    • Loop closure detection with hysteresis to minimize dial pulse distortion
  • Thermal Shutdown Protection with Hysteresis
  • Test Load Switch
  • Supports integrated test algorithms
Parametrics
Name
Value
Application
Broadband Gateway SLIC
Series
VE950
Loop Length
Short
Battery Topology
Tracking
SOC Interface
Serial
Output Voltage (V) max
145
Number of Ports
2
Release
True

Documents

Jump to:

Data Sheets

  
552KB

Please visit the Microsemi Software Download System (SDS) for available software.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LE9540CUQCT
0.107100
0.370000
40
VQFN
6x6x1mm
Matte Tin
e3
LE9540DUQC
0.107100
0.489796
40
VQFN
6x6x1mm
Matte Tin
e3
LE9540DUQCT
0.107100
0.370000
40
VQFN
6x6x1mm
Matte Tin
e3
LE9540CUQC
0.107100
0.489796
40
VQFN
6x6x1mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

Buy from Microchip

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy