SI3050-E1-FTR

Telecom Overview

The Skyworks Solutions Inc. SI3050-E1-FTR is a system-side programmable voice Direct Access Arrangement (DAA) component designed for FXO analog interfaces. It operates on a 3.3 V digital supply voltage with a typical current consumption of 8.5 mA and supports an ambient operating temperature range of 0 to 70 °C. The device provides an 80 dB dynamic range, integrates µ-law/A-law companding, and features a PCM highway data interface alongside an SPI control interface. It utilizes patented isolation capacitor technology to eliminate the need for external isolation transformers or relays.

Telecom Feature Summary

• Patented isolation capacitor technology eliminates the need for costly isolation transformers, relays, or opto-isolators while providing superior surge immunity.
• Integrates codec and 2- to 4-wire analog hybrid with programmable digital hybrid for near-end echo reduction.
• Supports parallel handset detection, pulse dialing, and Type I and II caller ID.
• Interfaces directly to standard telephony PCM interfaces and supports GCI interface.

Telecom Applications

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

Telecom Procurement Notes

Verify that the specific suffix 'E1' corresponds to the required temperature grade and packaging configuration before procurement. Confirm RoHS compliance status and lead times through authorized distributors. Ensure the ordering information matches the exact package type and revision level specified in the official datasheet to avoid compatibility issues.

Telecom Selection Notes

Select this component when designing globally compliant foreign exchange office (FXO) analog interfaces requiring high integration. It is suitable for applications needing minimal external components and robust field performance due to its integrated isolation barrier. Consider the available package options, such as 20-pin TSSOP or 24-pin QFN, based on board space constraints.

Telecom Part Context

The SI3050 serves as the system-side device within the Si3050+Si3011/18/19 Voice DAA chipset family. It is paired with line-side devices like the Si3011, Si3018, or Si3019 to complete the analog interface solution. This architecture allows for flexible deployment in various telecom equipment designs while maintaining global regulatory compliance.

Telecom Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing line-side devices if substituting within the same chipset family.

Telecom FAQ

Does the SI3050 require external isolation transformers?

No, the SI3050 implements Skyworks' patented isolation capacitor technology, which eliminates the need for costly isolation transformers, relays, or opto-isolators.

What types of caller ID does the SI3050 support?

The device supports both Type I and Type II caller ID standards.

Can the SI3050 interface with standard telephony PCM interfaces?

Yes, the Si3050 interfaces directly to standard telephony PCM interfaces and also supports a GCI interface.