SI3008-B-FSR

Overview

The SI3008-B-FSR is a Direct Access Arrangement (DAA) integrated circuit manufactured by Skyworks Solutions Inc. It operates as the line-side component of the Si2401/Si3008 ISOmodem chipset, providing a globally programmable telephone line interface. The device supports a digital supply voltage range of 3.0 V to 3.6 V and functions within an ambient temperature range of 0 °C to 70 °C for the F-Grade variant. It features over 6000 V capacitive isolation and complies with FCC, China, JATE, and 31 other PTT specifications. The package type is 16-SOIC.

Feature Summary

• Integrated Direct Access Arrangement (DAA) technology
• Global compliance with international PTT specifications
• Supports caller ID detection and decode
• Parallel phone detection capabilities

Applications

• Set-top boxes
• Point-of-sale terminals
• ATM terminals
• Security systems
• Medical monitoring devices

Procurement Notes

Verify the specific grade suffix against the datasheet to confirm operating temperature ranges. Confirm that the 16-SOIC package matches the target PCB footprint. Ensure the design accommodates the required external components listed in the typical application schematic for proper loop characteristics and isolation.

Selection Notes

Select this component when designing embedded modem applications requiring a compact solution with minimal external parts. It pairs directly with the Si2401 DSP data pump. Consider the F-Grade temperature rating for standard commercial environments. Verify UART interface compatibility with the host microcontroller.

Part Context

This part belongs to the Si2401/Si3008 chipset family designed for low-cost, high-integration modem solutions. It eliminates the need for separate codecs, isolation transformers, and relays. The chipset supports data rates up to 2400 bps full-duplex over PSTN networks using protocols such as V.22bis.

Replacement Considerations

Publicly confirmed direct substitutes are not available in the provided documentation.