SI3050-E1-FM

Telecom Overview

The Skyworks Solutions SI3050-E1-FM 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 voltage with a recommended range of 3.0 to 3.6 V and supports an operating temperature range of 0 to 70 °C. The device provides an 80 dB dynamic range for both transmit and receive paths, featuring integrated codecs and a 2- to 4-wire analog hybrid. It interfaces directly to standard telephony PCM or GCI highways and includes µ-law/A-law companding capabilities.

Telecom Feature Summary

• Patented isolation capacitor technology eliminates the need for bulky isolation transformers, relays, or opto-isolators while providing superior surge immunity.
• Integrated programmable line interface supporting AC/DC termination, ring detect threshold adjustment, and ringer impedance configuration.
• Supports parallel handset detection, pulse dialing, and Type I and II caller ID signaling with dedicated monitoring channels.
• Features programmable digital gain in 0.1 dB increments and digital hybrid settings for near-end echo reduction.

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 suffix 'E1' against official Skyworks documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly. Ensure the ordering code matches the exact revision required for your design implementation.

Telecom Selection Notes

Select this component when designing globally compliant FXO interfaces requiring high integration. Verify that the host processor supports the required SPI control interface or PCM/GCI highway protocols. Ensure the application environment stays within the specified ambient temperature limits for the F-grade rating.

Telecom Part Context

The SI3050 serves as the system-side controller in a chipset architecture, typically paired with line-side devices such as the Si3011, Si3018, or Si3019. This combination forms a complete Voice DAA solution. The Si3050 handles digital processing and control logic, while the line-side device manages the physical analog connection to the telephone network.

Telecom Replacement Considerations

Public confirmed substitute part numbers are not available in the provided datasheet. Designers should consult Skyworks Solutions for current product availability and potential obsolescence notices regarding the Si3050 series.

Telecom FAQ

Does the SI3050 require external isolation components?

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

What communication interfaces does the Si3050 support?

The device interfaces directly to standard telephony PCM highways and supports a Global Circuit Interface (GCI). It also features an SPI control interface for configuration.

How is echo cancellation handled in this device?

The Si3050 includes a programmable digital hybrid specifically designed for near-end echo reduction, allowing for flexible transhybrid balance adjustments.