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TH7107

Features: ·Fully integrated, PLL-stabilized VCO·Flexible frequency range from 310 MHz to 450 MHz·FSK through crystal pulling allows modulation from DC to 20 kbit/s·High FSK deviation possible for wideband data transmission·ASK achieved by on/off keying of internal power amplifier·FM possible with ...

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SeekIC No. : 004518552 Detail

TH7107: Features: ·Fully integrated, PLL-stabilized VCO·Flexible frequency range from 310 MHz to 450 MHz·FSK through crystal pulling allows modulation from DC to 20 kbit/s·High FSK deviation possible for wi...

TH7107 Data Sheet

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Part Number:
TH7107
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

·Fully integrated, PLL-stabilized VCO
·Flexible frequency range from 310 MHz to 450 MHz
·FSK through crystal pulling allows modulation from DC to 20 kbit/s
·High FSK deviation possible for wideband data transmission
·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 -12 dBm to +2 dBm
·Adjustable current consumption from 4.8 mA to 11.5 mA
·FSK deviation and center frequency independently adjustable
·Differential output well-suited for loop antenna
·External clock available for µC drive, down to 1.9 V supply
·"Clock only" mode
·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


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Condition
Min
Max
Unit
Supply voltage
Vcc
-0.3
7.0
V
Input voltage
Vin
DATA, ENCK, ENTX pins
-0.3
VCC+0.3
V
Input current
Iin
DATA, ENCK, ENTX pins
-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 TH7107 FSK/ASK/FM transmitter IC is designed for applications in the European 433MHz industrial-scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard. TH7107 can also be used for any other system with carrier frequencies ranging from 310 MHz to 450 MHz (e.g. for applications in the US 315MHz ISM band).

The transmitter TH7107'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 310 MHz to 450 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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