Infineon TDK5116F: A High-Performance 868 MHz ASK/FSK Transmitter for Wireless Applications

The Infineon TDK5116F stands as a highly integrated, monolithic ASK/FSK transmitter IC designed for robust and efficient short-range wireless communication in the 868 MHz SRD (Short Range Device) band. It is engineered to deliver exceptional performance for a wide array of applications, including automotive keyless entry systems (RKE), home automation, alarm and security systems, and industrial sensor telemetry.

A key strength of the TDK5116F lies in its high output power capability, which can be software-programmed up to +15 dBm. This ensures a strong, reliable link budget, extending the operational range of the wireless system. Complementing this is its exceptional power efficiency, making it an ideal choice for battery-powered devices where longevity is paramount. The device supports both Amplitude Shift Keying (ASK) and Frequency Shift Keying (FSK) modulation schemes. This flexibility allows system designers to choose the optimal modulation for their specific needs, balancing factors like data rate, noise immunity, and power consumption.

The integration level of the TDK5116F significantly simplifies design and reduces both PCB footprint and Bill of Materials (BOM). It requires only a minimal number of external components, such as a crystal, a few passive elements, and an antenna. This high level of integration, combined with its low current consumption in all operating modes, accelerates time-to-market and lowers overall system cost. Furthermore, its design ensures low spurious emissions, complying with stringent international radio regulations like ETSI EN 300 220 and FCC Part 15.

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The Infineon TDK5116F is a top-tier solution for designers seeking a reliable, efficient, and flexible 868 MHz transmitter. Its blend of high output power, excellent power efficiency, and dual modulation support makes it a versatile cornerstone for a multitude of wireless applications, from automotive to IoT.

Keywords:

1. ASK/FSK Transmitter

2. 868 MHz

3. High Output Power

4. Power Efficiency

5. Automotive RKE