SI3050-E1-GM

Telecom Overview

The Skyworks Solutions SI3050-E1-GM 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 recommended range of 3.0 to 3.6 V and supports an industrial temperature grade from -40 °C to +85 °C. The device provides 80 dB dynamic range, integrates µ-law/A-law companding, and features a PCM highway or GCI interface. Key electrical parameters include a typical power supply current of 8.5 mA and a deep sleep mode current of 1.3 mA.

Telecom Feature Summary

• Patented isolation capacitor technology eliminates the need for bulky isolation transformers, relays, or opto-isolators while providing superior surge immunity.
• Integrated codec and hybrid circuitry support parallel handset detection, caller ID, pulse dialing, and polarity reversal detection.
• Programmable line interface allows configuration of AC/DC termination, ring detect thresholds, and ringer impedance.
• Supports daisy-chaining for up to 16 devices via SPI control 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 the specific suffix 'GM' against the manufacturer's official ordering guide to confirm package type and tape/reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary by region.

Telecom Selection Notes

Select this model for applications requiring an industrial temperature range (-40 °C to +85 °C). Ensure the design accommodates the 3.3 V digital supply voltage and utilizes the appropriate communication interface (PCM or GCI) required by the host processor.

Telecom Part Context

This component belongs to the Si3050+Si3011/18/19 Voice DAA chipset family. The Si3050 serves as the system-side device, which must be paired with a line-side device such as the Si3011, Si3018, or Si3019 to complete the analog interface circuit.

Telecom Replacement Considerations

Check the manufacturer's obsolescence notices for direct replacements. Alternative options within the same family include other Si3050 variants with different suffixes indicating package or temperature grades.