WT11U-E-AI4

RF Transceiver Modules And Modems Overview

The WT11U-E-AI4 is a Class 1 Bluetooth 2.1 + EDR RF transceiver module manufactured by Silicon Labs, utilizing the BlueCore4 IC. It operates at 2.4GHz with an integrated chip antenna and supports surface mount installation. The module provides a transmit output power of 17dBm and achieves a receive sensitivity of -86dBm. It supports data rates up to 3Mbps via SPI, UART, USB, or PIO interfaces. Operating voltage ranges from 3V to 3.6V, with receive current at 36mA and transmit current between 88mA and 138mA.

RF Transceiver Modules And Modems Feature Summary

• Class 1 Bluetooth 2.1 + EDR connectivity for extended range
• Integrated BlueCore4 baseband processor
• Multiple serial interface options including SPI, UART, and USB
• Surface mount package with integrated chip antenna

RF Transceiver Modules And Modems Applications

• Wireless peripheral connections
• Data transfer in industrial equipment
• Consumer electronics audio streaming

RF Transceiver Modules And Modems Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence notices. Confirm specific interface configuration and firmware version compatibility with existing system designs prior to procurement. Check for available end-of-life documentation or alternative sourcing options if long-term supply assurance is required for production runs.

RF Transceiver Modules And Modems Selection Notes

Select this module when Class 1 range and Bluetooth 2.1 + EDR protocol support are required. Ensure the host system can accommodate the specified 3V to 3.6V supply voltage and peak transmit currents. Verify that the chosen serial interface (SPI, UART, or USB) aligns with the microcontroller capabilities and that the integrated antenna design fits within the mechanical constraints of the final enclosure.

RF Transceiver Modules And Modems Part Context

This module belongs to the WT11 series of Bluetooth modules from Silicon Labs, designed for embedded wireless applications. It leverages the widely adopted BlueCore4 technology to provide reliable short-range wireless communication. The series offers various classes and interface configurations to suit different range and integration requirements in IoT and consumer devices.

RF Transceiver Modules And Modems Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Silicon Labs resources for potential obsolescence management strategies or newer generation replacements such as the WT12 series if migration is necessary.