ATA555814-DDB

ATA555814-DDB Application Field and Working Principle

ATA555814-DDB is an integrated circuit (IC) designed and developed by Infineon Technologies, a semiconductor manufacturer based in Germany. This IC is part of a series of radio-frequency identification (RFID) ICs that are specifically designed for use in access control and security applications. The ATA555814-DDB has the ability to detect the presence of a specific type of RFID tag (connected to a key card or driver\'s license) and to return associated information about the tag. This type of security feature is widely used in access control and identification systems.

The ATA555814-DDB is a contactless IC that can be used in a variety of access and identification systems. The device is designed to operate at a frequency of 125 kHz and is capable of reading tags and other active RF devices operating at this frequency. The IC features a built-in demodulator, detector, and clock generator for reliable communication with RFID tags. The device also contains a 32-bit memory array for storing data associated with each tag, including the identification number and access control data.

In terms of working principle, the ATA555814-DDB uses the RF signals from the RFID tag to modulate the clock signal of the IC. When an RFID tag is in the vicinity of the IC, the modulated signal is fed back to the IC, which then identifies the tag and retrieves the data associated with it from its memory array. This data is then used by the system to authenticate and grant access. The ATA555814-DDB is a low-cost and low-power RFID system, making it perfect for access control and identification applications.