SI32260-C-GM1

Telecom Overview

The Si32260-C-GM1 is a single-chip dual ProSLIC device implementing two complete Foreign Exchange Station (FXS) telephony interfaces. It operates from a 3.3 V supply and supports standard PCM/SPI or GCI digital bus interfaces. The device integrates built-in DC-DC converter controllers to generate optimal battery voltage, supporting linefeed ratings of -110 V for the Si32260 variant. It accommodates full tracking, tracking shared supplies, or fixed rail high-voltage options. Key electrical parameters include a supply voltage range of 3.13 V to 3.47 V, an operating temperature range of -40 °C to +85 °C for the G-grade, and a maximum junction temperature of 145 °C. It is available in 47-pin QFN (6x8 mm) or 60-pin QFN (8x8 mm) packages.

Telecom Feature Summary

• Performs all BORSCHT functions within a single package
• Supports wideband audio for improved voice quality
• Includes integrated DC-DC controllers with direct MOSFET connection
• Features software-programmable ringing and impedance parameters

Telecom Applications

• VoIP gateways and routers
• xDSL Integrated Access Devices (IADs)
• Analog Terminal Adapters (ATA)
• Wireless Local Loop (WLL) systems

Telecom Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and grade. Ensure compatibility with required interface protocols such as PCM or SPI before procurement. Confirm that the selected component meets the necessary environmental specifications for the intended deployment environment.

Telecom Selection Notes

Select the Si32260 variant when the application requires a linefeed voltage rating of -110 V. Choose between the 6x8 mm and 8x8 mm packages based on board space constraints and thermal requirements. Verify support for Tracking Shared Supply mode if utilizing shared battery rails, noting that this feature may not be supported by the smaller package option.

Telecom Part Context

This component belongs to the Si32260/1 family of Dual ProSLIC devices manufactured by Skyworks Solutions. These devices are designed to provide cost-effective and low-power solutions for telephony applications requiring multiple FXS channels. The family supports various digital interfaces and offers flexible power management options to optimize efficiency in different system architectures.

Telecom Replacement Considerations

Check the manufacturer's datasheet for officially confirmed substitute part numbers. Ensure any replacement maintains identical pinout, electrical characteristics, and package dimensions to guarantee functional compatibility without hardware modifications.