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