The Atmel ATA5276 is a highly integrated ASK/FSK receiver optimized for low-power applications. It is primarily designed for use in remote keyless entry (RKE) systems, tire pressure monitoring systems (TPMS), and other wireless communication applications operating in the license-free ISM bands.

Applications:

• Remote Keyless Entry (RKE) systems
• Tire Pressure Monitoring Systems (TPMS)
• Wireless alarm systems
• Garage door openers
• Industrial control systems
• Home automation systems

Features:

• ASK/FSK receiver
• Frequency range: 300-930 MHz
• Low power consumption
• High sensitivity
• Wake-up timer
• Data slicer
• RSSI (Received Signal Strength Indicator)
• PLL synthesizer
• OOK (On-Off Keying) support
• Built-in antenna diversity support
• Adjustable data rate
• SPI interface

Benefits:

• Extended Battery Life: The ultra-low power consumption of the ATA5276 significantly extends the battery life of wireless devices, reducing maintenance requirements and enhancing user convenience.
• Reliable Wireless Communication: High sensitivity and RSSI provide a robust and reliable wireless link, even in challenging environments.
• Simplified System Design: Integrated features such as the wake-up timer, data slicer, and PLL synthesizer reduce the need for external components, simplifying system design and lowering overall BOM cost.
• Flexible Data Rate: The adjustable data rate allows optimization of communication speed and power consumption based on specific application requirements.
• Improved Performance: The built-in antenna diversity support enhances receiver performance by mitigating the effects of signal fading and multipath interference.

Additional Details:

The ATA5276 operates from a single supply voltage, typically 3.3V or 5V. It includes a programmable wake-up timer, which allows the device to periodically wake up and check for incoming signals, minimizing power consumption. The RSSI output provides an indication of the received signal strength, enabling adaptive threshold control and link quality monitoring. The SPI interface enables easy communication with microcontrollers and other system components. The ATA5276's ASK/FSK demodulator ensures reliable data recovery, even in noisy environments. The device is typically available in a small QFN package, making it suitable for space-constrained applications.