SI4010-C2-GSR

RF Transmitter Overview

The SI4010-C2-GSR is a sub-GHz RF transmitter system-on-chip from Silicon Labs, utilizing CMOS technology in a 14-pin SOIC surface-mount package. It operates within the 27 MHz to 960 MHz frequency range with a maximum data rate of 100 kbps and supports OOK and FSK modulation. The device features an integrated 8051-compatible MCU core, 4 kB RAM, and 8 kB non-volatile memory. It functions on a supply voltage of 1.8 V to 3.6 V, maintaining a standby current below 10 nA and a peak transmit current under 20 mA across an operating temperature range of -40°C to +85°C.

RF Transmitter Feature Summary

• Integrates a high-speed 8051 microcontroller core with built-in non-volatile memory and EEPROM for secure code storage.
• Features patented automatic antenna tuning circuitry to optimize PCB loop antenna efficiency without external components.
• Supports programmable OOK edge rate control to minimize harmonic scattering and comply with wireless regulations.
• Enables ultra-low power operation suitable for coin-cell battery applications with touch-wake GPIO functionality.

RF Transmitter Applications

• Automotive Remote Keyless Entry (RKE) systems
• Garage door openers
• Security alarm transmitters

RF Transmitter Procurement Notes

Verify the specific suffix 'GSR' against official Silicon Labs documentation to confirm the exact tape-and-reel quantity and packaging configuration, as distributor listings may vary. Ensure the component matches the required 14-pin SOIC form factor and verify that the C2 frequency variant aligns with regional regulatory requirements for your target market.

RF Transmitter Selection Notes

Select this component when a compact, single-chip solution is required for simple unidirectional remote control links. It is ideal for designs prioritizing minimal bill-of-materials complexity and low standby current consumption. Consider alternative packages like MSOP-10 if space constraints are tighter than the SOIC footprint allows.

RF Transmitter Part Context

This part belongs to the EZRadio family of sub-GHz transceivers. The SI4010 series is distinguished by its integration of the radio front-end and microcontroller, eliminating the need for separate baseband processors. The C2 designation indicates support for frequencies up to 960 MHz, covering common ISM bands globally.

RF Transmitter Replacement Considerations

Direct substitutes include other variants within the SI4010 family, such as SI4010-C2-GT or SI4010-C2-GTR, which share identical functional specifications but differ in packaging type or reel quantity.