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U3741BM

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 D...

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SeekIC No. : 004534814 Detail

U3741BM: 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•Sensitiv...

U3741BM Data Sheet

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Part Number:
U3741BM
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/22

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Product Details

Description



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 /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)


Pinout

Connection Diagram


Specifications

Characteristic
Symbol
Min.
Max.
Unit
Supply voltage
VS
6
V
Power dissipation
Ptot
450
mW
Junction temperature
Tj
+125
°C
Storage temperature
Tstg
-55
+125
°C
Ambient temperature
Tamb
-40
+150
°C
Maximum input level, input matched to 50 W
Pin_max
  
10
dBm



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. U3741BM's main applications are in the areas of telemetering, security technology and keyless-entry systems. U3741BM can be used in the frequency receivingrange of f0 = 300 MHz to 450 MHz for ASK or FSK data transmission. All the statements made below refer to 433.92-MHz and 315-MHz applications.




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