The Atmel U2400B is a highly integrated single-chip transmitter IC intended for remote control applications, focusing on low power consumption and cost-effectiveness. Its key purpose is to reliably transmit data wirelessly over short to medium distances, making it suitable for devices such as keyless entry systems, garage door openers, and remote control devices for various appliances.

Applications

• Remote Keyless Entry (RKE) Systems: Used in automotive applications for keyless entry and remote vehicle control.
• Garage Door Openers: Employed in garage door opener transmitters for wireless activation and control.
• Home Automation Systems: Integrated into home automation systems for remote control of lighting, appliances, and other devices.
• Alarm Systems: Utilized in wireless alarm systems for transmitting alarm signals and remote arming/disarming.
• Industrial Control: Can be applied in certain industrial settings for remote control of machinery or processes.

Features

• Single-Chip Transmitter: Integrates all necessary transmitter functions into a single integrated circuit.
• Low Power Consumption: Designed for low power operation to maximize battery life in portable devices.
• ASK Modulation: Typically uses Amplitude Shift Keying (ASK) modulation for data transmission.
• UHF Frequency Range: Operates in the UHF frequency band, typically between 300 MHz and 950 MHz.
• Compact Package: Available in a small package suitable for space-constrained applications.

Benefits

• Extended Battery Life: Low power consumption contributes to prolonged battery life in remote control devices.
• Simplified System Design: Single-chip integration reduces component count and simplifies PCB layout.
• Cost-Effective Solution: Provides a cost-effective solution for wireless remote control applications.
• Reliable Data Transmission: ASK modulation ensures reliable data transmission within specified range and conditions.

Additional Details

The Atmel U2400B generally requires an external antenna for optimal transmission range. It likely includes programmable output power settings for adjusting signal strength. Frequency calibration is usually built-in for stable and accurate operation. The operating voltage range typically falls between 2.0V and 3.6V. The physical package varies based on manufacturer specifics and application needs. The exact RF frequency is determined by external components connected to the IC. It adheres to regulatory standards for short-range devices in relevant regions. A microcontroller is generally necessary to format and transmit the data. A sleep mode may be incorporated to minimize power consumption when inactive.