آر اف (فرکانس رادیویی) و بی‌سیم آی‌سی آر‌اف‌آی‌دی و کنترل دسترسی

Product Attributes

Introduction

VI521R is a highly integrated, low-power single-chip ASK/OOK RF receiver IC. All RF signal reception functions are fully integrated on-chip, achieving the most reliable reception performance with minimal external components and lowest cost. It is therefore a true single-chip receiver in the sense of "wireless RF modulated signal input, digital demodulated signal output."

VI521R comes in an SOP8 package, with an operating voltage range of 2.2~5.0V, operating current of 5.0 - 5.2mA, startup time of 3.6ms, and a maximum receive sensitivity of -112dBm, making it ideal for various low-power applications. All RF and IF tuning is performed automatically on-chip, eliminating manual tuning processes during development and production, thereby reducing costs and accelerating time-to-market.

Features

• Operating frequency 300 - 490 MHz
• Data rate 1 - 10 kbps
• Sensitivity -112 dBm (3 kbps), 0.1% BER
• Receiver bandwidth 500 kHz @ 433.92 MHz, 400 kHz @ 315 MHz
• Image rejection ratio 30 dB
• Maximum input signal -20 dBm
• Supply voltage 2.2 – 5.0 V
• Low power consumption 5.0mA @ 315 MHz, 5.2mA @ 433.92 MHz
• Ultra-low startup time 3.6ms, suitable for low-power applications

Applications

• Remote access control systems
• Tire pressure monitoring devices
• Remote-controlled fans and lighting switches
• Wireless sensor data transmission
• IR receiver replacement
• Toy remote control