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T5744-TKS Datasheet

  • T5744-TKS

  • UHF ASK Receiver

  • 280.18KB

  • 20頁

  • ATMEL   ATMEL

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上傳產(chǎn)品規(guī)格書

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Features
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Minimal External Circuitry Requirements, no RF Components on the PC Board Except
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Matching to the Receiver Antenna
High Sensitivity, Especially at Low Data Rates
SSO20 and SO20 package
Fully Integrated VCO
Supply Voltage 4.5 V to 5.5 V, Operating Temperature Range -40擄C to 105擄C
Single-ended RF Input for Easy Adaptation to l/4 Antenna or Printed Antenna on PCB
Low-cost Solution Due to High Integration Level
Various Types of Protocols Supported (i.e., PWM, Manchester and Biphase)
Distinguishes the Signal Strength of Several Transmitters via RSSI (Received Signal
Strength Indicator)
ESD Protection According to MIL-STD. 883 (4KV 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
Power Management (Polling) is Possible by Means of a Separate Pin via the
Microcontroller
Receiving Bandwidth BIF = 600 kHz
UHF ASK
Receiver
T5744
Description
The T5744 is a PLL receiver device for the receiving range of f
0
= 300 MHz to
450 MHz. It is developed for the demands of RF low-cost data communication sys-
tems with low data rates and fits for most types of modulation schemes including
Manchester, Biphase and most PWM protocols. Its main applications are in the areas
of telemetering, security technology and keyless-entry systems.
Figure 1.
System Block Diagram
UHF ASK/FSK
Remote control transmitter
UHF ASK
Remote control receiver
1 Li cell
U2741B
T5744
Demod.
Data
interface
1...3
碌C
Keys
Encoder
M44Cx9x
XTO
PLL
IF Amp
Antenna Antenna
VCO
PLL
XTO
Power
amp.
LNA
VCO
Rev. 4521B鈥揜KE鈥?1/03
1

T5744-TKS 產(chǎn)品屬性

  • Atmel

  • 射頻收發(fā)器

  • 5 V

  • SSO-20

  • Tube

  • - 40 C

  • SMD/SMT

  • - 40 C to + 105 C

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