SI4012-A0-GT

RF Transmitter Overview

The SI4012-A0-GT is a fully integrated, crystal-less CMOS RF transmitter from Silicon Labs, designed for sub-GHz ISM band applications. It supports FSK and OOK modulation formats with a maximum output power of 10 dBm and operates within a frequency range of 27 MHz to 960 MHz. The device functions on a supply voltage between 1.8 V and 3.6 V, drawing 19.8 mA during transmission. It utilizes an SMBus interface for control and is housed in a 10-TFSOP package.

RF Transmitter Feature Summary

• Fully integrated crystal-less design eliminates external oscillator components
• Supports FSK and OOK modulation protocols for flexible data transmission
• High output power capability up to 10 dBm for extended range
• Low voltage operation suitable for battery-powered embedded systems

RF Transmitter Applications

• Home automation systems
• Remote sensing networks
• Keyless entry systems (RKE)

RF Transmitter Procurement Notes

Verify the specific suffix 'A0' against official Silicon Labs documentation to confirm automotive qualification status or regional compliance variations. Ensure the 10-TFSOP package matches the target PCB footprint. Confirm RoHS3 compliance requirements prior to final procurement decisions.

RF Transmitter Selection Notes

Select this component for designs requiring simplified bill-of-materials due to the absence of a crystal. It is appropriate for applications needing moderate transmit power and low standby current. Evaluate the SMBus interface compatibility with the host microcontroller before integration.

RF Transmitter Part Context

This part belongs to the EZRadio series of wireless ICs from Silicon Labs. It serves as a high-data-rate transmitter optimized for sub-GHz frequencies. The family focuses on reducing system complexity by integrating necessary RF functions into a single chip without external passive components.

RF Transmitter Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.