AS3990开发板套件编程器的RFID评估开发套件板规格书PDF中文资料

General Description

The AS3990 UHF reader chip is an integrated analogue front end and data framing system for a 900MHz RFID reader system. Built in programming options make it suitable for a wide range of

applications in UHF RFID systems. Designed to simplify the design and implementation of an EPC

Class 1Gen2 reader, this IC requires only a standard 8Bit microcontroller with minimal other components.

Key Features

• Fully compliant with ISO 18000 6a, 6b, 6c and EPC Class 1- Gen2 protocol using external MCU

• EPC Class 1 -Gen2 framing support using low cost 8 Bit microcontroller

• Direct data mode in the frequency range of 860 to 960 MHz enables propriety Protocol support

• Internal power amplifier with level controlled 20dBm for short range applications

• Modulator using ASK or PR-ASK modulation

• Adjustable ASK modulation index

• Automatic selection between I and Q Signal ensuring no “communication holes”

• Built-in reception low-pass and high-pass filters having selectable corner frequencies.

• On chip VCO and PLL covering complete RFID frequency range and frequency hopping support

• Selectable receiver gain with AGC

• Supported link frequencies from 40 up to 640kHz