The U6084B is a single-chip car door lock receiver IC from Atmel. It's designed for use in automotive remote keyless entry (RKE) systems and other applications requiring secure and reliable wireless communication. This IC integrates the receiver, decoder, and output drivers necessary to control the door locks in a vehicle.

Applications

• Automotive Remote Keyless Entry (RKE) Systems
• Car Alarm Systems
• Central Locking Systems
• Other Automotive Security Applications

Features

• Single-chip solution for car door lock receiver
• Integrated receiver, decoder, and output drivers
• ASK/FSK demodulation
• Low current consumption
• Supply voltage range: 4.5V to 5.5V
• High sensitivity receiver
• Built-in antenna matching network
• Multiple output channels for door lock control
• Over-the-air (OTA) programming support

Benefits

• Reduced system cost and complexity due to single-chip integration
• Improved security and reliability of RKE systems
• Extended battery life due to low current consumption
• Simplified antenna design with built-in matching network
• Flexibility in door lock control with multiple output channels
• Easy firmware updates through OTA programming

Technical Specifications

The U6084B operates within a frequency range suitable for RKE systems, typically 315 MHz or 433.92 MHz. It uses ASK or FSK modulation for data transmission. The IC includes a sophisticated decoder to prevent unauthorized access. The output drivers are capable of directly driving relays or other actuators for controlling the door locks. The device package is typically a small outline package (SOIC) for easy integration into automotive electronics.

This device is designed to meet the stringent requirements of the automotive industry, including robustness against electromagnetic interference (EMI) and temperature variations.