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SI4710-B31-GMR is listed in the RF Transmitter range at ChipApex. The manufacturer field lists Skyworks Solutions Inc.. Its product description is IC RF TXRX VHF 20QFN. Review the specifications below when checking this part for your BOM.
RF Transmitter specifications for SI4710-B31-GMR
- Description：IC RF TXRX VHF 20QFN
- Series：-
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- Frequency：76MHz ~ 108MHz
- Applications：General Purpose
- Modulation or Protocol：FM
- Data Rate (Max)：-
- Power - Output：-
- Current - Transmitting：18.8mA
- Data Interface：PCB, Surface Mount
- Antenna Connector：PCB, Surface Mount
- Memory Size：-
- Features：-
- Voltage - Supply：2.7V ~ 5.5V
- Operating Temperature：-20°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-UFQFN Exposed Pad
- Supplier Device Package：20-QFN (3x3)
- Grade：-
- Qualification：-
RF Transmitter datasheet and documents for SI4710-B31-GMR
RF Transmitter Overview
The SI4710-B31-GMR is an obsolete RF transmitter IC from Skyworks Solutions, designed for FM radio broadcasting applications. It operates within the VHF frequency range of 76 MHz to 108 MHz and supports RDS data encoding. The device utilizes a 20-lead QFN package with dimensions of 3 mm x 3 mm. It accepts audio input via I2S interface and controls transmission through I2C communication. The component functions on a supply voltage between 2.7 V and 5.5 V, drawing 18.8 mA during transmission and 20 uA in standby mode. It is rated for operation between -20°C and +85°C.
RF Transmitter Feature Summary
- Integrated FM transmitter with RDS encoding capability
- Digital audio input via I2S interface
- Compact 20-QFN surface-mount packaging
- Low power consumption with standby mode support
RF Transmitter Applications
- FM radio broadcasting transmitters
- RDS data transmission systems
- VHF frequency signal generation
- Portable audio broadcast devices
RF Transmitter Procurement Notes
This component is officially classified as obsolete by the manufacturer. Availability is restricted or non-existent through standard distribution channels. Verify end-of-life status and lifecycle documentation before design commitment. Source only from authorized surplus suppliers if replacement is required. Confirm datasheet revisions and application notes for legacy support details.
RF Transmitter Selection Notes
Select this part only for legacy system maintenance or specific VHF FM transmission requirements where RDS integration is necessary. Evaluate alternative Skyworks FM transmitter models for new designs due to obsolescence. Ensure compatibility with existing I2S audio sources and I2C control logic. Consider thermal management within the small QFN footprint.
RF Transmitter Part Context
Part of the SI4710 series of RF transmitters. Manufactured using silicon technology. Subcategory: Wireless & RF Integrated Circuits. Trademark: Skyworks Solutions, Inc. Moisture sensitivity rating applies. Factory packaging quantity was 1000 units per reel.
RF Transmitter Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult Skyworks Solutions technical support for current product line recommendations.
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