代理商原裝 PT4455 普誠OOK/ASK發(fā)射機IC
DESCRIPTION
PT4455 is a high performance OOK/ASKtransmitter for the Remote Keyless Entry (RKE)systems. It consists of a power amplifier, one-shotcircuit and phase-locked loop with internal voltagecontrolled oscillator and loop filter. The one-shotcircuit control the phase-locked loop and poweramplifier to have fast start-up time in operation.
FEATURES
● Highly integrated OOK/ASK transmitter
● High output power, 3V/+ 11dBm/17mA
● Low supply voltage (2.2V to 3.6V operation range)
● Low external component cost
● SAW-based oscillator, frequency range from 300MHz to 450MHz
● On-chip one -shot circuit
● 60dB RF on/off ratio
● Available in 6-pin, SOT-23package
APPLICATIONS
● Keyless entry systems
● Remote control systems
● Garage door openers
● Alarm systems
● Security systems
● Wireless sensors
