Skyworks Solutions, Inc. Integrated Circuits (ICs) - Interface - Telecom SI32184-A-FMR

The 1260843-SI32184-A-FMR is a single-channel ProSLIC¬Æ integrated circuit designed for FXS telephony interface applications. It operates from a 3.3 V supply and supports standard PCM/SPI or 3-wire ISI digital interfaces with 3.3 V or 1.8 V I/O levels. The device includes an integrated dc-dc controller that generates optimal battery voltages for various line states, with a maximum voltage rating of ,Äì106 V. It is packaged in a 40-pin QFN format measuring 6x6 mm. Key features include support for wideband audio, low-power ringing, and programmable parameters such as ringing frequency and amplitude. The IC performs essential BORSCHT functions and is suitable for applications including VoIP gateways, xDSL IADs, and optical network terminals. It also offers audio diagnostics, integrated test load, and low power consumption, making it a versatile choice for telecom interface solutions.