CYW43438LKUBGT

RF Transceiver ICS Overview

The CYW43438LKUBGT is an Infineon Technologies RF System on a Chip integrating a single-band 2.4 GHz WLAN 802.11n MAC/baseband, Bluetooth v4.0 controller, and FM receiver. It features a 63-pin WLBGA package (2.87x4.87 mm). The device supports SDIO, SPI, UART, and JTAG interfaces with 5 GPIOs. Operating voltage ranges from 1.2V to 3.3V. Receive current is 37-41mA; transmit current is 260-320mA. Operating temperature spans -30°C to +70°C. Storage includes 640kB ROM and 512kB SRAM.

RF Transceiver ICS Feature Summary

• Integrates Wi-Fi, Bluetooth, and FM reception in a single chip
• Supports standard wireless communication protocols
• Includes embedded memory for code and data storage
• Offers multiple digital interface options for system integration

RF Transceiver ICS Applications

• IoT sensor nodes requiring wireless connectivity
• Smart home devices with network control capabilities
• Portable consumer electronics with Bluetooth pairing
• Industrial monitoring systems with remote data transmission

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'L' against official Infineon documentation to confirm pinout and software compatibility differences compared to standard variants. Ensure the design-in process accounts for the 63-WLBGA thermal requirements and signal integrity constraints associated with this small form factor package.

RF Transceiver ICS Selection Notes

Select this component when a combined Wi-Fi and Bluetooth solution is required within strict size limitations. The integrated FM radio adds value for audio applications. Confirm that the 2.4 GHz single-band operation meets the target environment's interference profile and regulatory requirements for the intended market.

RF Transceiver ICS Part Context

This part belongs to the Infineon AIROC CYW4343x family of wireless connectivity solutions. It serves as a cost-effective option for applications needing basic Wi-Fi and Bluetooth functionality without the complexity of dual-band support or higher throughput requirements found in newer generations.

RF Transceiver ICS Replacement Considerations

Public sources indicate the CYW43438KUBGT is software-compatible with no functional differences. Verify if the KUBGT variant is available as a direct substitute based on current supply chain status and packaging availability.