SI32260-C-FM1R

Telecom Overview

The Skyworks SI32260-C-FM1R is a single-chip dual ProSLIC device implementing two complete FXS telephony interfaces. It operates from a 3.3 V supply with a range of 3.13 V to 3.47 V and supports PCM, SPI, or GCI digital interfaces. The component features built-in DC-DC controllers for battery voltage generation and provides linefeed ratings of -110 V. It includes wideband audio support, DTMF detection, and comprehensive loop diagnostics within a 60-pin QFN package.

Telecom Feature Summary

• Performs all BORSCHT functions including integrated DC-DC controllers for optimized power efficiency
• Supports wideband audio and programmable AC impedance with adaptive ringing capabilities
• Facilitates self-testing and metallic loop testing via built-in DSP and monitor ADC
• Enables software-programmable parameters such as ringing cadence, transhybrid balance, and pulse metering

Telecom Applications

• VoIP gateways and routers
• xDSL IADs
• Analog Terminal Adapters (ATA)
• Private Branch Exchange (PBX)

Telecom Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout compatibility and thermal characteristics. Ensure that the selected package variant matches the intended PCB land pattern requirements. Confirm RoHS compliance status through the latest environmental declarations provided by Skyworks Solutions.

Telecom Selection Notes

Select this component when designing systems requiring dual FXS channels in a compact footprint. Evaluate the thermal resistance specifications relative to the expected ambient operating temperature and power dissipation limits. Consider the available interface options, such as SPI or PCM, based on the host processor architecture and system timing constraints.

Telecom Part Context

This part belongs to the Si32260/1 family of ProSLIC devices, which are designed for high-performance subscriber line interfacing. The series integrates advanced DSP capabilities for voice processing and line management. It serves as a core component in modern telecommunications equipment, replacing traditional discrete analog solutions with a unified digital approach.

Telecom Replacement Considerations

Public confirmed substitute part numbers: None.