TDA5051AT/C1,518

Overview

The TDA5051AT/C1,518 is a home automation modem IC designed for Amplitude Shift Keying (ASK) data transmission over the home power supply network. Operating from a single 5 V supply, it supports baud rates of 600 or 1200. The device features full digital carrier generation and shaping, an integrated output power stage with overload protection, and Automatic Gain Control at the receiver input. It includes an 8-bit A/D converter with narrow digital filtering and delivers baseband data via digital demodulation. The modem operates within the EN50065-1 frequency band, typically centered at 132.5 kHz, and complies with CISPR16 standards through simple coupling networks.

Feature Summary

• Full digital carrier generation and shaping for ASK transmission
• Integrated output power stage with overload protection
• Automatic Gain Control (AGC) at receiver input
• Digital demodulation delivering baseband data

Applications

• Home appliance control including air conditioning, shutters, lighting, and alarms
• Energy and heating control systems
• Amplitude Shift Keying (ASK) data transmission using the home power network

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape/reel configuration. Ensure compatibility with the required oscillator frequency range and supply voltage specifications. Confirm that the component meets the necessary environmental temperature ratings for the intended application environment before finalizing procurement.

Selection Notes

Select this modem for applications requiring low-cost ASK communication over power lines. Ensure the design accommodates the SO16 plastic package dimensions. Verify that the microcontroller interface supports the required TTL/CMOS logic levels for DATA_IN and DATA_OUT pins. Consider the external LC coupling network requirements for impedance matching and signal isolation.

Part Context

The TDA5051A belongs to NXP's portfolio of home automation modems. It is specifically engineered for power line communication in residential settings. The device integrates both transmission and reception functionalities into a single chip, reducing the need for external components and simplifying system design for smart metering and appliance control.

Replacement Considerations

Check for direct pin-to-pin replacements within the TDA5051A family. Verify functional equivalence regarding carrier frequency stability and modulation schemes. Ensure any substitute component maintains compliance with EN50065-1 and CISPR16 standards for power line communication.