AS3955-AWLT-I4

The AS3955-AWLT-I4 is a wireless access and monitoring IC from the family of Radio Frequency Identification (RFID) chips. It is designed for use in long-range applications in the 125 KHz and 134 KHz frequency bands to control access, remotely monitor, and collect environmental data. The chip is manufactured in a 0.4-inch package that is compatible with both hand-helds and embedded reader devices.

The AS3955-AWLT-I4 contains a sophisticated transceiver system that is capable of transmitting and receiving data over both short and long distances. The transceiver features radio frequency (RF) power control, frequency hopping, and common-mode rejection to achieve superior interference immunity and link stability. It also supports multiple modulation schemes, including Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), and GMSK, allowing data transfer rates from 9.6 Kbps to 115.2 Kbps. The device is designed to meet international standards such as ISO 14443 and ISO 15693.

The AS3955-AWLT-I4 includes an internal PLL and digital signal processing (DSP) circuitry to minimize transmit and receive errors. The chip can be used in both point-to-point and multipoint wireless communication systems for applications such as asset tracking, remote monitoring, and industrial control. An array of on-board digital and analog features, including a 16-bit timer, comparator, and voltage regulator, makes it easy to integrate the AS3955-AWLT-I4 into a new or existing application.

The AS3955-AWLT-I4 works in two distinct modes. In the transmit mode, the device generates a digital data signal and modulates it onto a carrier frequency. This signal is then amplified and transmitted to a receiver. In the receive mode, the receive input is passed through a mixer circuit to convert the received signal to digital data and demodulated, after which the digital data is passed to a DSP processor for decoding.

The AS3955-AWLT-I4 is an ideal choice for applications that require low power consumption, reliable performance over long distances, and a high degree of integration. The device is suited for use in applications such as asset tracking, remote monitoring, industrial control, and retail applications. It is also well-suited for use in healthcare, automotive, and consumer applications. The AS3955-AWLT-I4 has been designed for easy integration and is fully tested for compliance with all relevant international standards.