Description
The Si32260/1 Dual ProSLIC® devices, in a single package, implement two complete foreign exchange station (FXS) telephony interfaces. The Si32260/1 devices operate from a 3.3 V supply and have standard PCM/SPI or GCI (8x8 mm package only) bus digital interfaces. A pair of built-in dc-dc converter controllers can be used to automatically generate the optimal battery voltage required for each line-state, optimizing efficiency and minimizing heat generation.
Si32260/1 Features
◾ Two complete FXS channels in a single
6 x 8 mm or 8 x 8 mm package
◾ Performs all BORSCHT functions
◾ Ideal for short- or long-loop applications
◾ Ultra low power consumption
◾ Internal balanced or unbalanced ringing
◾ Patented low power ringing
◾ Adaptive ringing
◾ Simplified configuration and diagnostics
• Supported by ProSLIC API
• GR-909 loop diagnostics
• Audio diagnostics with loopback
• Integrated test load
◾ Wideband voice support
◾ On-hook transmission
◾ Loop or ground start operation
◾ Smooth polarity reversal
◾ Pulse metering
◾ PCM and SPI bus digital interfaces with
programmable interrupts
◾ Software-programmable parameters:
• Ringing frequency, amplitude,
cadence, and waveshape
• Two-wire ac impedance
• Transhybrid balance
• DC current loop feed (10–45 mA)
• Loop closure and ring trip thresholds
• Ground key detect threshold
◾ Integrated dc-dc controllers with direct
connection to MOSFET
◾ Three high voltage supply options
• Full tracking
• Tracking shared supplies
• Fixed rail
◾ DTMF generator/decoder
◾ A-Law/µ-Law companding, linear PCM
◾ GCI/IOM-2 mode support
◾ 3.3 V operation
◾ Pb-free/RoHS-compliant packaging
Applications
◾ VoIP gateways and routers
◾ xDSL IADs
◾ Optical Network Terminals/Units (ONT/U)
◾ Analog Terminal Adapters (ATA)
◾ Cable eMTA
◾ Wireless Fixed Terminals (WFT)
◾ Wireless Local Loop (WLL)
◾ WiMAX CPE
◾ Private Branch Exchange (PBX)
◾ VoIP MDU gateways