SI4030-B1-FM

RF Transmitter Overview

The SI4030-B1-FM is a Sub-GHz RF transmitter from Silicon Labs, operating within the 900 MHz to 960 MHz frequency range. It supports GMSK, 4GFSK, GFSK, and OOK modulation schemes with a maximum data rate of 256 kbps. The device delivers up to +13 dBm output power and features a -8 dBm sensitivity. It utilizes an SPI interface and operates on a 1.8V to 3.6V supply voltage. The component is housed in a 20-pin QFN package and functions within a temperature range of -40°C to +85°C.

RF Transmitter Feature Summary

• Supports multiple modulation formats including GMSK, 4GFSK, GFSK, and OOK for flexible communication protocols.
• Provides high output power capability up to +13 dBm to extend transmission range.
• Integrates a low-noise receiver architecture achieving -8 dBm sensitivity for reliable signal detection.
• Features a compact 20-pin QFN surface-mount package suitable for space-constrained designs.

RF Transmitter Applications

• Wireless sensor networks
• Industrial telemetry systems
• Remote control devices
• Smart metering infrastructure

RF Transmitter Procurement Notes

Verify current availability status as this component may be subject to end-of-life notifications or obsolescence. Confirm that the specific B1 variant matches design requirements before procurement. Check for official replacement recommendations from Silicon Labs if active production has ceased. Ensure compatibility with existing PCB layouts and antenna matching circuits during integration planning.

RF Transmitter Selection Notes

Select this component for applications requiring dedicated transmission capabilities in the Sub-GHz band. Consider the fixed frequency range of 900-960 MHz against regional regulatory requirements. Evaluate the need for simultaneous reception; if full duplex or reception is required, consider transceiver variants within the EZRadioPRO family instead.

RF Transmitter Part Context

The SI4030-B1-FM belongs to the Silicon Labs EZRadioPRO family of wireless products. This series targets ISM band applications with integrated radio front-end solutions. The part represents a transmitter-only solution within the broader portfolio that includes transceivers and receivers, offering optimized performance for one-way data transmission tasks.

RF Transmitter Replacement Considerations

Public sources indicate the SI4030-B1-FM is obsolete. Verify manufacturer-recommended substitutes such as newer EZRadioPRO models. Ensure pinout and register compatibility when transitioning to alternative components to minimize redesign efforts.