SI3050-E1-FMR

Telecom Overview

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

Telecom Feature Summary

• Patented isolation capacitor technology eliminates the need for costly isolation transformers, relays, or opto-isolators.
• Integrated codec and hybrid circuitry support parallel handset detection and programmable line interface configurations.
• Supports standard telephony PCM interfaces and includes Type I/II caller ID and pulse dialing capabilities.

Telecom Applications

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

Telecom Procurement Notes

Verify the specific FMR suffix against official Skyworks documentation to confirm reel packaging specifications. Confirm RoHS compliance status and moisture sensitivity levels prior to integration. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability of this discontinued series component.

Telecom Selection Notes

Select the Si3050 paired with a compatible line-side device such as the Si3011, Si3018, or Si3019 to complete the Voice DAA chipset solution. Verify that the target application requires the 20-pin TSSOP package format available for the Si3050. Ensure the design accommodates the necessary external components required by the paired line-side device for minimal bill of materials.

Telecom Part Context

This component belongs to the Si3050+Si3011/18/19 family of programmable voice DAA solutions. It serves as the system-side processing unit within a two-chip architecture, communicating with a dedicated line-side device to manage analog telephone line interfacing. This configuration allows for flexible deployment across various telecommunications hardware platforms requiring global compliance.

Telecom Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult Skyworks Solutions technical support for legacy replacement guidance or evaluate newer generations of voice DAAs if active sourcing is required.