SI4055-B1A-FM

Description：RF TX IC FSK QFN
Series：-
Mfr：Silicon Labs
Package：Tray

SKU:5c398a5a5c75 Category: RF Transmitters Brand: Silicon Labs

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Product introduction

SI4055-B1A-FM is listed in the RF Transmitter range at ChipApex. The manufacturer field lists Silicon Labs. Its product description is RF TX IC FSK QFN. Review the specifications below when checking this part for your BOM.

RF Transmitter specifications for SI4055-B1A-FM

Description：RF TX IC FSK QFN
Series：-
Mfr：Silicon Labs
Package：Tray
Frequency：-
Applications：-
Modulation or Protocol：-
Data Rate (Max)：-
Power - Output：-
Current - Transmitting：-
Data Interface：-
Antenna Connector：-
Memory Size：-
Features：-
Voltage - Supply：-
Operating Temperature：-
Mounting Type：Surface Mount
Package / Case：-
Supplier Device Package：20-QFN (3x3)
Grade：-
Qualification：-

RF Transmitter datasheet and documents for SI4055-B1A-FM

SI4055-B1A-FM

RF Transmitter Overview

The SI4055-B1A-FM is a sub-GHz RF transmitter IC from Silicon Labs' EZRadio series. It operates in the 284MHz to 960MHz frequency range with FSK and OOK modulation protocols. The device supports data rates up to 500kbps and delivers a maximum output power of 13dBm. It functions on a supply voltage of 1.8V to 3.6V, housed in a 20-VFQFN package.

RF Transmitter Feature Summary

Supports FSK and OOK modulation for reliable low-power transmission
Integrated SPI interface for simplified system control
Optimized for low current consumption in battery-powered applications

RF Transmitter Applications

Wireless remote controls
Industrial telemetry systems
Smart metering devices

RF Transmitter Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix matches the required packaging and revision level. Check for obsolescence status as some variants may be restricted for new designs. Ensure compliance with RoHS3 specifications for environmental standards.

RF Transmitter Selection Notes

Select this model when only transmission capability is required for sub-GHz ISM bands. Compare against transceiver options if bidirectional communication is needed. Evaluate power budget requirements against the 13dBm output limit. Consider the 20-QFN footprint for PCB layout constraints.

RF Transmitter Part Context

This component belongs to the Si4x55 family, representing the latest generation of EZRadio devices. It serves as the transmit-only counterpart to the Si4355 receiver and complements the Si4455 transceiver. The family shares common programming guides and design resources for consistent development workflows.