Shenzhen Emperor Peng Technology Co. Ltd. 25190701010 Manuale Utente

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PT4450 PRE1.0 
- 1 - 
August, 2007
 
DESCRIPTION 
PT4450 is a high performance ASK/OOK transmitter for the Remote Keyless Entry (RKE) systems.  
It consists of a SAW oscillator, power amplifier, and one-shot circuit which control the SAW 
oscillator and power amplifier.  
FEATURES 
•  Highly integrated ASK/OOK transmitter 
•  High output power, 3V/+10dBm/18mA  
•  Low supply voltage (2.2V to 3.6V operation range) 
•  Low external component cost. 
•  SAW-based oscillator, frequency range from 250MHz to 500MHz 
•  On-chip one-shot circuit 
•  50dB RF on/off ratio 
•  Available in 6 pins, SOT-23 package 
 
APPLICATIONS 
•  Keyless entry systems 
•  Remote control systems 
•  Garage door openers 
• Alarm systems 
• Security systems 
•  Wireless sensors                                      
 
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