KEY FEATURES

• Complete FXS solution in a single 5x6 mm

or 6x6 mm package

• Performs all BORSCHT functions

• Ideal for short to medium loops

• Global programmability

• Patented low-power ringing

• Simplified configuration and diagnostics

• Supported by ProSLIC API

• Audio diagnostics with loopback

• Integrated test load

• Ultra low power consumption

• Wideband voice support

• On-hook transmission

• Loop or ground start operation

• Smooth polarity reversal

• A-Law/μ-Law companding, linear PCM

• Flexible integrated tracking dc-dc

controller supporting patent-pending lowcost

capacitive boost configuration

• 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

• Pulse metering

• DTMF generation

• DTMF detection (Si32183/5)

• 3.3 V operation

• Support for 1.8 V I/O

• Maximum battery up to –106 V

• Pb-free/RoHS-compliant packaging

• Two digital interface options

• 3-wire Integrated Serial Interface (ISI) or

PCM/SPI interface