SI4012-C1001GTR

RF Transmitter Overview

The SI4012-C1001GTR is a fully integrated crystal-less CMOS RF transmitter from Silicon Labs, designed for sub-GHz ISM band applications. It operates within a frequency range of 27 MHz to 960 MHz and supports FSK and OOK modulation formats. The device delivers an output power of up to 10 dBm with a maximum data rate of 100 kBaud. It functions on a supply voltage between 1.8 V and 3.6 V, drawing 19.8 mA during transmission. Packaged in a 10-TFSOP (MSOP) surface-mount case, it ensures reliable performance across temperatures from -40°C to +85°C.

RF Transmitter Feature Summary

• Fully integrated crystal-less architecture eliminates external oscillator requirements
• Features automatic antenna tuning for optimized impedance matching
• Supports high-data-rate transmission up to 100 kBaud
• Adjustable output power capability up to +10 dBm

RF Transmitter Applications

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

RF Transmitter Procurement Notes

Verify the specific suffix GTR indicates tape-and-reel packaging when sourcing components. Confirm that the part number matches the exact frequency and modulation requirements for the target application. Ensure compatibility with the 10-TFSOP footprint during PCB layout. Check RoHS compliance status if required by regional regulations. Validate supplier authenticity through authorized distribution channels.

RF Transmitter Selection Notes

Choose this component for designs requiring simplified bill of materials due to the absence of an external crystal. It is suitable for applications needing moderate output power and flexible frequency selection within the sub-GHz range. Consider the 10-TFSOP package size for space-constrained layouts. Evaluate the 19.8 mA transmit current against battery life requirements for portable devices.

RF Transmitter Part Context

This part belongs to the Si4012 EZRadio family of wireless ICs. It serves as a cost-effective solution for simple point-to-point or star network topologies. The series is known for low complexity and ease of integration into microcontroller-based systems. It complements other variants in the lineup offering different packaging or frequency options.

RF Transmitter Replacement Considerations

SI4012-C1001GT is available in tube packaging instead of tape-and-reel.

RF Transmitter FAQ

Does the SI4012-C1001GTR require an external crystal?

No, the device features a fully integrated crystal-less architecture.

What modulation schemes are supported?

It supports Frequency Shift Keying (FSK) and On-Off Keying (OOK).