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