The ATA5756 is a UHF ASK/FSK Transmitter manufactured by Atmel (now Microchip Technology). It is designed for automotive and industrial remote control applications. This transmitter supports both Amplitude Shift Keying (ASK) and Frequency Shift Keying (FSK) modulation schemes, offering flexibility in communication protocols. Though listed as END-OF-LIFE, the ATA5756 was previously a common choice for remote keyless entry systems and other short-range wireless communication devices.

Applications

• Remote Keyless Entry (RKE) systems in automobiles.
• Tire Pressure Monitoring Systems (TPMS).
• Remote control applications in industrial settings.
• Garage door openers.
• Alarm systems.

Features

• UHF ASK/FSK Transmitter.
• Frequency range: 300 MHz to 950 MHz.
• Programmable output power.
• Low current consumption.
• Supports multiple data rates.
• Integrated PLL.

Benefits

• Flexibility in modulation schemes (ASK/FSK) allows for optimization of communication performance.
• Programmable output power enables adjustment of transmission range.
• Low current consumption extends battery life in portable devices.
• Wide frequency range supports various regional regulations.
• Integrated PLL simplifies circuit design.

Additional Details

The ATA5756 requires an external microcontroller for data processing and control. It includes a Phase-Locked Loop (PLL) for accurate frequency generation. The output power is programmable, allowing the designer to optimize the transmission range based on the application requirements. Due to its End-of-Life status, newer designs should consider alternative transmitter solutions. However, it remains relevant for maintaining existing systems. The device datasheet from Microchip provides detailed information regarding RF performance, electrical characteristics, and application notes. This information is essential for proper design and implementation.