TH71081

Features: ·Fully integrated, PLL-stabilized VCO·Flexible frequency range from 800 MHz to 930 MHz·ASK achieved by on/off keying of internal power amplifier·FM possible with external varactor·Wide power supply range from 2.2 V to 5.5 V· High over-all frequency accuracy·Very low standby current·Adjus...

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TH71081 Picture
SeekIC No. : 004518555 Detail

TH71081: Features: ·Fully integrated, PLL-stabilized VCO·Flexible frequency range from 800 MHz to 930 MHz·ASK achieved by on/off keying of internal power amplifier·FM possible with external varactor·Wide pow...

floor Price/Ceiling Price

Part Number:
TH71081
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: 2024/11/28

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Product Details

Description



Features:

·Fully integrated, PLL-stabilized VCO
·Flexible frequency range from 800 MHz to 930 MHz
·ASK achieved by on/off keying of internal power amplifier
·FM possible with external varactor
·Wide power supply range from 2.2 V to 5.5 V
· High over-all frequency accuracy
·Very low standby current
·Adjustable output power range from
   -15 dBm to +1 dBm
·Adjustable current consumption from 6.2 mA to 12.5 mA
·Differential output well-suited for loop antenna
·Conforms to EN 300 220 and similar standard



Application

·Keyless car and central locking
·Low-power telemetry
·Alarm and security systems
·General digital data transmission
·General analog audio signal transmission
·Local oscillator signal generation



Pinout

  Connection Diagram


Specifications

Parameter
Symbol
Condition
Min
Max
Unit
Supply voltage
Vcc
 
-0.3
7.0
V
Input voltage
Vin
ENTX pin
-0.3
VCC+0.3
V
Input current
Iin
ENTX pin
-1.0
1.0
mA
Storage temperature
TSTG
 
-40
150
Electrostatic discharge
VESD
human body model,
MIL STD 833D
method 3015.7
-1.0
+1.0
kV



Description

The TH71081 ASK transmitter IC is designed for applications in the European 868MHz industrialscientific- medical (ISM) band, according to the EN 300 220 telecommunications standard. TH71081 can also be used for any other system with carrier frequencies ranging from 800 MHz to 930 MHz (e.g. for applications in the US 915MHz ISM band).

The transmitter TH71081's carrier frequency fc is determined by the frequency of the reference crystal fref that is used. The integrated PLL synthesizer ensures that each RF value, ranging from 800 MHz to 930 MHz, can be achieved by using a crystal with reference frequency according to: fref = fc/N, where N = 32 is the PLL feedback divider ratio.




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