TDA7255VXUMA1

Overview

The TDA7255VXUMA1 is a wireless transceiver IC designed for the General ISM band, specifically operating within the 433 MHz to 435 MHz frequency range. It supports ASK and FSK modulation schemes for data transmission. The device is housed in a 40-pin VFQFN package with an exposed pad, suitable for surface mount installation. Key electrical specifications include a power output of 13 dBm and a sensitivity of -115 dBm. This component facilitates reliable short-range wireless communication in industrial, scientific, and medical applications.

Feature Summary

• Supports ASK and FSK modulation for versatile data encoding
• Integrated high-power output stage for extended range
• High receiver sensitivity for reliable signal detection
• Designed for general ISM band operations

Applications

• Industrial control systems
• Scientific instrumentation
• Medical device telemetry

Procurement Notes

Verify the specific pinout and thermal requirements against your PCB layout, as the 40-VFQFN package requires adequate heat dissipation. Confirm that the target application strictly adheres to the 433-435 MHz ISM band regulations in your region. Ensure compatibility with the required ASK or FSK demodulation logic in your microcontroller interface.

Selection Notes

Select this component when a robust, single-chip solution for 433 MHz wireless links is required. It is appropriate for designs needing moderate transmit power and high sensitivity without external PA components. Consider the VFQFN package size constraints and thermal management capabilities during the schematic design phase.

Part Context

This part belongs to Infineon's RF Transceiver ICs category, targeting the sub-1 GHz market segment. It serves as a dedicated transmitter and receiver unit for low-to-medium data rate applications. The device integrates necessary RF front-end functions to simplify system architecture compared to discrete solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence carefully if considering alternatives from other manufacturers.