TDK5100F

RF Transmitter Overview

The TDK5100F is a single-chip ASK/FSK RF transmitter IC manufactured by Infineon Technologies, designed for operation in the 433-435 MHz frequency band. It features a supply voltage range of 2.1V to 4V and delivers a maximum output power of 3.2dBm. The device supports data rates up to 20kbps with a transmission current of 7mA. Packaged in a 10-TFSOP (10-MSOP) surface-mount case, it operates within a temperature range of -25°C to 85°C. This component integrates high-level functionality for wireless communication applications.

RF Transmitter Feature Summary

• Integrated single-chip design supporting both Amplitude Shift Keying (ASK) and Frequency Shift Keying (FSK) modulation protocols
• High integration level requiring minimal external components for basic operation
• Surface-mount package configuration suitable for PCB assembly

RF Transmitter Applications

• Alarm systems
• Communication systems

RF Transmitter Procurement Notes

Verify component status carefully as this part is listed as obsolete or discontinued in major distributor databases. Confirm availability through secondary market channels if new production units are required. Ensure compatibility with existing board layouts due to the specific 10-TFSOP package dimensions. Check datasheet revisions for any pinout or electrical characteristic updates before finalizing procurement plans.

RF Transmitter Selection Notes

Select this component for low-cost, short-range wireless links operating at 434MHz. It is suitable for simple on-off keying or frequency shift keying requirements where moderate output power suffices. Consider the limited data rate when designing protocol layers. Verify that the host microcontroller can provide the necessary serial interface signals directly without additional buffering.

RF Transmitter Part Context

This device belongs to the TDK series of RF transmitters from Infineon Technologies. It is engineered specifically for the ISM band around 433-435 MHz, common in European and Asian markets. The chip consolidates oscillator, modulator, and power amplifier functions into one small footprint, reducing bill-of-materials complexity for basic telemetry and remote control tasks.

RF Transmitter Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is marked as obsolete, engineers must identify equivalent devices based on pin-to-pin compatibility and matching electrical specifications such as 434MHz operation and ASK/FSK support.