SILICON LABS SI32261 Single Chip Dual ProSLIC

SILICON LABS

SI32261

SI32261 date sheet

Product category

Single Chip Dual ProSLIC

Application

VoIP gateways and routers

Specification

Two complete FXS channels in 8 x 8 mm

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

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