SI3050-E-FM

Overview

The Skyworks Solutions SI3050-E-FMR is a system-side programmable voice Direct Access Arrangement (DAA) component designed for global FXO analog interfaces. Operating on a 3.3 V supply, it supports PCM and GCI digital highways with µ-law/A-law companding. The device provides an 80 dB dynamic range, integrated codec, and hybrid functions. It features patented isolation technology exceeding 5000 V isolation without external transformers. Key capabilities include parallel handset detection, caller ID support, pulse dialing, and programmable gain in 0.1 dB increments.

Feature Summary

• Patented isolation capacitor technology eliminates the need for costly isolation transformers or relays while providing superior surge immunity.
• Integrated codec and 2- to 4-wire analog hybrid with programmable digital hybrid for near-end echo reduction.
• Supports multiple communication interfaces including standard telephony PCM highways and GCI interfaces.
• Comprehensive line monitoring includes loop current sensing, line voltage monitoring, and polarity reversal detection.

Applications

• DSL Integrated Access Devices (IADs)
• VoIP gateways
• PBX and IP-PBX systems
• Voice mail systems
• DECT base stations

Procurement Notes

Verify the specific suffix 'FMR' against the manufacturer's official ordering guide to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check for any recent product change notices regarding lead availability or pin compatibility updates.

Selection Notes

Select this component when designing globally compliant FXO interfaces requiring high integration. Ensure the paired line-side device (Si3011/18/19) matches the required package options. Verify that the host processor supports the necessary SPI or PCM/GCI interface timing constraints specified in the switching characteristics tables.

Part Context

The SI3050 serves as the system-side controller in the Si3050+Si3011/18/19 Voice DAA chipset. It pairs with line-side devices like the Si3011, Si3018, or Si3019 to complete the analog interface circuit. This architecture allows for flexible deployment across various telecom equipment types while maintaining compact board space through minimal external component counts.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's obsolescence notices or latest datasheet revision for potential recommended replacements if this specific variant is discontinued.

FAQ

Does the SI3050 require external isolation components?

No, the SI3050 utilizes patented isolation capacitor technology that eliminates the need for external isolation transformers, relays, or opto-isolators.

What digital interfaces does the SI3050 support?

The device interfaces directly to standard telephony PCM highways and supports GCI (Global Common Channel Interface) modes.

How is echo cancellation handled in this device?

It includes an integrated 2- to 4-wire analog hybrid and a programmable digital hybrid specifically designed for near-end echo reduction.