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SI4031-B1-FMR is listed in the RF Transmitter range at ChipApex. The manufacturer field lists Silicon Labs. Its product description is RF TX IC FSK 240-930MHZ 20VFQFN. Review the specifications below when checking this part for your BOM.
RF Transmitter specifications for SI4031-B1-FMR
- Description：RF TX IC FSK 240-930MHZ 20VFQFN
- Series：EZRadioPRO®
- Mfr：Silicon Labs
- Package：Tape & Reel (TR)
- Frequency：240MHz ~ 930MHz
- Applications：General Purpose
- Modulation or Protocol：FSK, GFSK, OOK
- Data Rate (Max)：256kbps
- Power - Output：13dBm
- Current - Transmitting：30mA
- Data Interface：PCB, Surface Mount
- Antenna Connector：PCB, Surface Mount
- Memory Size：-
- Features：-
- Voltage - Supply：1.8V ~ 3.6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-QFN (4x4)
- Grade：-
- Qualification：-
RF Transmitter datasheet and documents for SI4031-B1-FMR
RF Transmitter Overview
The SI4031-B1-FMR is a sub-GHz RF transceiver from the Si4x3x family, operating within the 240 MHz to 930 MHz frequency range. It features a +13 dBm output power capability and -8 dBm sensitivity. The device utilizes a 20-VFQFN package with an exposed pad for thermal management. It supports various modulation formats including FSK, GFSK, OOK, and MSK, suitable for ISM band applications.
RF Transmitter Feature Summary
- Integrated transmitter and receiver functionality for single-chip wireless communication solutions.
- Supports multiple modulation schemes including FSK, GFSK, OOK, and MSK for flexible data transmission.
- Includes programmable baseband filters and automatic gain control for optimized signal processing.
RF Transmitter Applications
- Wireless metering systems
- Industrial telemetry
- Remote control devices
RF Transmitter Procurement Notes
Verify the specific suffix 'B1' corresponds to the required silicon revision and pinout configuration. Confirm the 'FMR' packaging designation matches the reel quantity requirements for automated assembly processes. Ensure compatibility with the target PCB footprint for the 20-VFQFN package.
RF Transmitter Selection Notes
Select this component when sub-GHz operation between 240 MHz and 930 MHz is required. Consider the +13 dBm output power for extended range needs. Evaluate the 20-VFQFN package size against board space constraints. Verify that the supported modulation types align with the system protocol requirements.
RF Transmitter Part Context
This part belongs to the Si443x EZRadioPRO series, designed for low-power, high-performance wireless applications. It integrates a radio front-end with a digital baseband processor. The family offers configurable parameters to adapt to various regulatory domains and application-specific data rates.
RF Transmitter Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official Silicon Labs resources for current obsolescence status or direct replacements.
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