SI4322-A1-FT

RF Receivers Overview

The SI4322-A1-FT is an obsolete RF receiver from Silicon Labs designed for FSK modulation. It operates across sub-GHz frequency bands including 433MHz, 868MHz, and 915MHz. The device features a sensitivity of -109dBm and supports data rates up to 256kbps. It is packaged in a surface-mount 16-TSSOP format suitable for PCB integration.

RF Receivers Feature Summary

• Supports FSK modulation schemes
• Operates at multiple sub-GHz frequencies
• High sensitivity reception capability

RF Receivers Applications

• Wireless sensor networks
• Remote control systems
• Telemetry applications

RF Receivers Procurement Notes

Verify component status carefully as the SI4322-A1-FT is officially listed as obsolete. Check Product Change Notice #0912241 which indicates withdrawal of this specific revision. Ensure availability of alternative revisions such as the Si4322-A0-FT/FDI before finalizing procurement plans to avoid supply chain disruptions.

RF Receivers Selection Notes

Consider the Si4322-A0-FT or Si4322-FDI variants as direct replacements due to the obsolescence of the A1 revision. Evaluate broader alternatives like the Si446x series if higher performance or active production status is required. Confirm that the 16-TSSOP package fits the target PCB layout constraints.

RF Receivers Part Context

This component belongs to Silicon Labs' portfolio of wireless connectivity solutions. While the manufacturer offers extensive IoT platforms and MCU families, this specific part is a dedicated RF receiver. Its design focuses on low-power, short-range communication tasks within regulated ISM bands.

RF Receivers Replacement Considerations

Public documentation confirms the Si4322-A0-FT and Si4322-FDI as mass production revisions replacing the withdrawn Si4322-A1-FT/FDI. These are the primary substitutes to consider.