SI4463-C2A-GMR

RF Transceiver ICS Overview

The SI4463-C2A-GMR is a sub-GHz RF transceiver from Silicon Labs, operating within the 142 MHz to 1.05 GHz frequency range. It supports maximum data rates of 1 Mb/s with modulation formats including FSK, GFSK, GMSK, MSK, and OOK. The device features a receive sensitivity of -129 dBm and a maximum output power of 20 dBm. It operates on supply voltages between 1.8 V and 3.8 V, drawing 13.7 mA during reception and up to 85 mA during transmission. Communication is managed via an SPI interface, housed in a 20-QFN package, and functions reliably across temperatures from -40°C to +85°C.

RF Transceiver ICS Feature Summary

• Supports multiple modulation schemes including FSK, GFSK, GMSK, MSK, and OOK for versatile communication protocols.
• Delivers high link budget performance through superior receiver sensitivity and configurable transmit power levels.
• Integrates advanced packet processing capabilities such as forward error correction and automatic frequency compensation.

RF Transceiver ICS Applications

• Wireless M-Bus (WMbus) smart metering applications
• Industrial, Scientific, and Medical (ISM) band communications
• FCC Part 90 narrowband public safety radio systems
• Low-power wireless sensor networks

RF Transceiver ICS Procurement Notes

Verify that the specific suffix 'C2A' matches the required silicon revision and errata status for your design. Confirm the 'GMR' designation aligns with the intended tape-and-reel packaging requirements. Ensure the QFN-20 footprint dimensions are compatible with your PCB layout constraints before finalizing procurement.

RF Transceiver ICS Selection Notes

Select this component when high output power near 20 dBm is required alongside excellent sensitivity. It is suitable for designs needing flexible modulation options beyond simple OOK or FSK. Consider alternatives like the SI4461 or SI4460 if lower transmit current consumption is a priority over maximum power output.

RF Transceiver ICS Part Context

This part belongs to the EZRadioPRO family of sub-GHz transceivers. It shares architectural similarities with the SI4460 and SI4461 models, differing primarily in maximum transmit power capabilities. The C2A revision indicates a specific hardware update within the Si446x series, ensuring compatibility with standard driver libraries while addressing previous silicon revisions.

RF Transceiver ICS Replacement Considerations

The SI4461-C2A-GMR offers similar functionality but with a maximum output power of 16 dBm. The SI4460-C2A-GMR provides even lower power consumption with a maximum output of 12.5 dBm. These parts share the same package and pinout, allowing for potential board-level substitution if power requirements permit.