SAW-based ASK/OOK Transmitter IC
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.
• 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
• Keyless entry systems
• Remote control systems
• Garage door openers
• Alarm systems
• Security systems
• Wireless sensors
datasheet pdf - http://www.DataSheet4U.net/