TDA7255V

Overview

The TDA7255V is an ASK/FSK single-channel transceiver designed for the 433-435 MHz frequency band. It operates within a supply voltage range of 2.1V to 5.5V and supports data rates up to 100kbps. The device features a maximum output power of 13dBm and a sensitivity of -115dBm. It integrates I2C and SPI serial interfaces for control. The component is housed in a VQFN-40 package and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-level functionality into a compact VQFN-40 package for space-constrained designs
• Supports both ASK and FSK modulation schemes for versatile wireless communication
• Enables digital configuration via integrated I2C and SPI serial interfaces

Applications

• Wireless remote control systems
• Low-power sensor networks
• IoT security applications

Procurement Notes

Verify the specific suffix (e.g., XUMA1) against the official Infineon ordering list to ensure correct packaging and tape-and-reel specifications. Confirm that the VQFN-40 footprint matches your PCB design guidelines. Check current lifecycle status as RF components may undergo discontinuation or revision updates.

Selection Notes

Select this component when a single-channel solution at 433-435 MHz is required with low power consumption. Ensure the host microcontroller supports the necessary I2C or SPI protocols for register configuration. Verify that the required output power and sensitivity meet the link budget for the intended application distance.

Part Context

This part belongs to the TDx5255 series of wireless transceivers from Infineon Technologies. It is distinct from other TDA series audio amplifiers despite similar naming conventions. The device targets sub-GHz ISM band applications requiring simple integration and minimal external passive components.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.