1
© 2014 Microsemi Corporation. All Rights Reserved.
Features
• Single channel population option for Le9642
two channel, 105 V maximum battery designs
• Pin-Selectable PCM/SPI or ZSI Interfaces
- Single port 4-wire ZSI control compatible with
numerous VoIP processors and SoC solutions
- Less expensive isolation than multi-port control,
simplifies board routing
• Smaller, 48-pin 7x7 mm QFN package
• Economical, fifth-generation line interface
solution for VoIP processors and SoCs
• VoicePath SDK and VP-API-II Software
available to implement FXS functions
• VeriVoice Professional Test Suite Software
• Comprehensive subscriber loop testing,
including Telcordia GR-909-CORE / TIA-1063
diagnostic testing
• Industry leading advanced test software
• VeriVoice Manufacturing Test Package (VVMT)
• Facilitates factory testing and calibration of
assembled boards
• Low cost, Energy Efficient Switching
Regulator Architectures
- Up to 65-V
RMS
open circuit ringing with
up to 5 REN load
• Low cost, 2-Layer PCB Reference Designs
• Complete Wideband BORSCHT functionality
• Worldwide Programmability
• Narrowband or Wideband operation
Applications
• Fixed Wireless (LTE) Gateways
• DSL Residential Gateways and Integrated
Access Devices (IADs)
• Cable Embedded Multimedia Terminal
Adapters (eMTAs)
• PON Single Family Units (SFU)
• Fiber-to-the-premise (FTTX) solutions
• Analog Telephone Adapters (ATAs)
Description
The miSLIC
TM
Series Line Circuits together with a VoIP
processor or SoC, provides an economical turn-key
solution for derived voice applications. The versatile
Le9641 miSLIC can be controlled via a PCM/SPI or ZSI
interface.
The Le9641 miSLIC 1 FXS Tracking device is a drop-in
pin compatible device to the miSLIC 2 FXS Le9642
device. The Le9641 uses energy efficient power supply
topologies for reduced BOM cost. The Le9641 can be
configured to operate a Buck-Boost fixed tracking supply
or an Inverting-Boost supply. Ringing and system power
management are supported to limit the peak power
requirements of the telephone line FXS port. The Le9641
features wideband clarity and complete BORSCHT
functionality.
Manufacturing self test and subscriber line diagnostics
are available features. All AC, DC, and power parameters
are programmable making the Le9641 device suitable for
any short loop application requiring SLIC functionality.
Figure 1 - Le9641 Block Diagram
TIPD
1
TDC
1
TAC
1
RINGD
1
RDC
1
RAC
1
GND VREF
VBAT
1
High
Voltage
Line Driver
Data
Transmission
and Control
Analog
Reference
Voice
Signal
Processing
Supervision
Processing
Signaling
Control
LFC
1
RTV
1
RSN
1
IHL
1
Switching
Regulator
Controllers
Signal
Generation
PCLK/ZCLK
DRA/ZMOSI
DXA/ZMISO
FS/ZSYNC
SWCMPY
SWVSY
SWISY
SWOUTY
Power
Supplies
AVDD
VDDSW
VDDHPI
DVDD
DVDD1V2IREF
Le9641
Voltage
Sense
Input/Output
Serial
Peripheral
Interface
ZSI
DCLK
CS
DOUT
DIN
INT
VS1 I/O1
Document ID# 150402 Version 1 September 2014
Le9641
Subscriber Line Interface Circuit
miSLIC
TM
Series
Product Brief
Ordering Information
Device OPN
Device Type Package Packing
Le9641PQCT SLIC, Tracker 48-pin QFN Tape&Reel
Le9641PQC SLIC, Tracker 48-pin QFN Tray
These Green packages meet RoHS 2 Directive 2011/65/EU of
the European Council to minimize the environmental impact of
electrical equipment.
