DESCRIPTION

· Si3228x Dual ProSLIC® devices integrate two complete FXS telephony interfaces in a single package.
· Operates from a 3.3 V supply with PCM/SPI or 3-wire ISI digital interfaces.
· Features built-in dc-dc converter controllers for optimal battery voltage generation.
· Supports capacitive boost tracking battery supply for lower power and cost.
· Includes built-in DSP, monitor ADC, and test load for self-testing and metallic loop testing.
· Available in 7 x 7 mm 48-pin QFN or 8 x 8 mm 56-pin QFN package.

FEATURES

· Two complete FXS channels in a compact package.
· Performs all BORSCHT functions.
· Ultra-low power consumption with patented low-power ringing.
· Smart Ringing reduces peak current with 2-channel ringing.
· Wideband voice support and on-hook transmission.
· Integrated test load and audio diagnostics with loopback.
· Flexible integrated tracking DC-DC controller.
· DTMF Generation and Detection (Si32281/3/5/7).
· 3-wire Integrated Serial Interface (ISI) or PCM interface.
· Pb-free/RoHS-compliant packaging.

APPLICATIONS

· VoIP gateways and routers.
· xDSL IADs and Optical Network Terminals/Units (ONT/U).
· Analog Terminal Adapters (ATA) and Cable eMTA.
· Wireless Fixed Terminals (WFT) and Wireless Local Loop (WLL).
· WiMAX CPE and Private Branch Exchange (PBX).
· VoIP MDU gateways.