SI4010-C2-GTR

RF Transmitter Overview

The SI4010-C2-GTR is a fully integrated, crystal-less CMOS System-on-Chip (SoC) RF transmitter designed for sub-1 GHz ISM frequency bands. It features an embedded CIP-51 8051 microcontroller core and supports OOK and FSK modulation schemes. The device operates within a frequency range of 27 MHz to 960 MHz, with the C2 variant covering 284–960 MHz via external inductance tuning. It delivers up to 10 dBm output power at a maximum data rate of 100 kbps. Power supply requirements are 1.8 V to 3.6 V, with a transmission current consumption of 19.8 mA. The component is housed in a 10-pin MSOP package and functions within a temperature range of -40°C to +85°C.

RF Transmitter Feature Summary

• Fully integrated crystal-less architecture eliminates external oscillator components
• Embedded 8051 MCU core enables direct code execution without host processor
• Supports OOK and FSK modulation for simple wireless communication protocols
• Highly compact design requiring minimal external passive components

RF Transmitter Applications

• Garage and gate door openers
• Home automation and security systems
• Remote keyless entry systems
• Wireless sensor networks

RF Transmitter Procurement Notes

Verify that the specific suffix 'GTR' corresponds to the tape-and-reel packaging configuration required for automated surface-mount assembly processes. Confirm that the C2 designation aligns with the target operational frequency band of 284–960 MHz for the intended application spectrum. Ensure compatibility with the 1.8 V to 3.6 V supply voltage range and validate that the 10-pin MSOP footprint matches the PCB layout constraints.

RF Transmitter Selection Notes

Select this component when a standalone, low-cost transmitter solution is required without a separate microcontroller. The integrated 8051 core simplifies firmware development by handling protocol stacks internally. Consider the 10 dBm output power capability for short-range applications. The crystal-less feature reduces bill-of-materials complexity and board space. Verify that the 100 kbps data rate suffices for the specific control signal transmission needs.

RF Transmitter Part Context

The SI4010 belongs to the EZRadio family of RF transmitters from Silicon Labs. It is part of the SI4010 series, which includes variants like the SI4010-C2-GT and SI4010-C2M0UGTR. These devices share the same core architecture but differ in packaging, memory configurations, and specific frequency band coverages. The SI4010-C2-GTR specifically denotes the version optimized for the higher sub-GHz bands with reel packaging.

RF Transmitter FAQ

Does the SI4010-C2-GTR require an external crystal oscillator?

No, the SI4010-C2-GTR is a crystal-less SoC that integrates the necessary clock generation circuitry internally.

What is the maximum output power of the SI4010-C2-GTR?

The maximum output power is 10 dBm.