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TH72001   Transmitter - 315MHz, FSK (SOIC8)

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The TH72001 FSK transmitter IC is designed for applications in the 315 MHz industrial-scientific-medical (ISM) band. It can also be used for any other system with carrier frequencies ranging from 290 MHz to 350 MHz.
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 290 MHz to 350 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 290 MHz to 350 MHz
  • Single-ended RF output
  • FSK through crystal pulling allows modulation from DC to 40 kbit/s
  • High FSK deviation possible for wideband data transmission
  • 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
  • FSK deviation and center frequency independently adjustable
  • Adjustable output power range from -10 dBm to +11 dBm
  • Adjustable current consumption from 3.2 mA to 10.3 mA
  • Conforms to FCC part 15 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
Crystal Selection Guide
PDF
127.2 KB
002
10/24/2006
edit
PA Output Matching
PDF
114.5 KB
001
4/10/2006
edit
 
DataSheet
File Type
Size
Revision
Date
Action
TH72001 DataSheet
PDF
569.5 KB
008
6/23/2008
edit
 
Product flyers
File Type
Size
Revision
Date
Action
TH72001 Product Information
PDF
496.1 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
 



Related Products

Part Number
Description
 
EVB72005 Evaluation Board for TH72005, TH72001 and TH72002
MLX90603 Tire Pressure Monitoring Sensor
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