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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¨C45 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/¦Ì-Law companding, linear PCM

? GCI/IOM-2 mode support

? 3.3 V operation

? Pb-free/RoHS-compliant packaging