U3741BM中文资料UHF ASK Receiver IC数据手册Microchip规格书

描述 Description

The U3741BM is a multi-chip PLL receiver device supplied in an SO20 package. It has been specially developed for the demands of RF low-cost data transmission systems with low data rates from 1 kBaud to 10 kBaud (1 kBaud to 3.2 kBaud for FSK) in Manchester or Bi-phase code. The receiver is well suited to operate with Atmel's PLL RF transmitter U2741B. Its main applications are in the areas of telemetering, security technology and keyless-entry systems. It can be used in the frequency receiving range of f0 = 300 MHz to 450 MHz for ASK or FSK data transmission. All the state ments made below refer to 433.92-MHz and 315-MHz applications.

特性 Features

• Minimal External Circuitry Requirements, No RF Components on the PC Board Except Matching to the Receiver Antenna
• High Sensitivity, Especially at Low Data Rates
• Sensitivity Reduction Possible Even While Receiving
• Fully Integrated VCO
• Low Power Consumption Due to Configurable Self Polling with a Programmable Time Frame Check
• Supply Voltage 4.5 V to 5.5 V
• Operating Temperature Range -40°C to 105°C
• Single-ended RF Input for Easy Adaptation to λ/4 Antenna or Printed Antenna on PCB
• Low-cost Solution Due to High Integration Level
• ESD Protection According to MIL-STD 883 (4KV HBM) Except Pin POUT (2KV HBM)
• High Image Frequency Suppression due to 1 MHz IF in Conjunction with a SAW Front-end Filter
   – Up to 40 dB is Thereby Achievable with Newer SAWs.
• Programmable Output Port for Sensitivity Selection or for Controlling External Periphery
• Communication to the Microcontroller Possible via a Single, Bi-directional Data Line
• Power Management (Polling) is also Possible by Means of a Separate Pin via the Microcontroller
• 2 Different IF Bandwidth Versions are Available (300 kHz and 600 kHz) 

简介

U3741BM属于RF/IF射频/中频RFID的射频接收器。由制造生产的U3741BM射频接收器RF 接收器用于接收已调制的射频信号并对其进行解调，然后将数据传送到系统中进行处理。频率范围是 AM、FM、WB、0 Hz 至 64 GHz，数据速率为 250 bps 至 16 Gbps，数据接口包括连接器、I2C、I2S、引脚焊盘、并行、PCB、串行、焊盘、SPI、UART 和 USB。