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TH72012   Transmitter - 433MHz, ASK (SOIC8)

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The TH72012 ASK transmitter IC is designed for applications in the European 433 MHz industrial-scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard; but it can also be used in other counties with similar standards, e.g. FCC part 15.231.
The transmitter's carrier frequency fc is determined by the frequency of the reference crystal fref. The integrated PLL synthesizer ensures that carrier frequencies, ranging from 380 MHz to 450 MHz, can be achieved. This is done by using a crystal with a reference frequency according to: fref = fc/N, where N = 32 is the PLL feedback divider ratio.
 

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Features and Benefits

  • Fully integrated PLL-stabilized VCO
  • Frequency range from 380 MHz to 450 MHz
  • Single-ended RF output
  • ASK achieved by on/off keying of internal power amplifier up to 40 kbit/s
  • Wide power supply range from 1.95 V to 5.5 V
  • Operating temperature range -40°C to +125°C
  • Very low standby current
  • On-chip low voltage detector
  • High over-all frequency accuracy
  • Adjustable output power range from -11 dBm to +10 dBm
  • Adjustable current consumption from 3.4 mA to 10.6 mA
  • Conforms to EN 300 220 and similar standards
  • 8-pin Small Outline Integrated Circuit (SOIC)

Product Applications

Wireless Access Control
Tire Pressure Monitoring Systems (TPMS)
Remote Keyless Entry (RKE)
Remote Controls
Alarm and Security Systems
Garage Door Openers
Automated Meter Reading (AMR)
General Digital Data Tansmission
Home and Building Automation


Assets

Application Note
File Type
Size
Revision
Date
Action
PA Output Matching
PDF
114.5 KB
001
4/10/2006
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DataSheet
File Type
Size
Revision
Date
Action
TH72012 DataSheet
PDF
560.7 KB
010
6/25/2008
edit
 
Product flyers
File Type
Size
Revision
Date
Action
TH72012 Product Information
PDF
493.2 KB
02-07
2/27/2007
edit
 
Reference
File Type
Size
Revision
Date
Action
RF Quick Reference
PDF
69.1 KB
019
11/20/2008
edit
 



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EVB72015 Evaluation Board for TH72015, TH72011 and TH72012
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