PLL-based OOK/ASK/FSK Transmitter IC

Product ID: PT4452

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PT4452 is a high performance OOK/ASK/FSK

transmitter for the Remote Keyless Entry (RKE)

systems. It consists of a power amplifier, one-shot

circuit and phase-locked loop with internal voltage

controlled oscillator and loop filter.
• Highly integrated OOK/ASK/FSK transmitter• High output power, 3V/+11dBm/17mA• Low supply voltage, 2.4V to 3.6V operation range• Low external component cost.• PLL-based transmitter with frequency range from300MHz to 450MHz• On-chip one-shot circuit• 60 dB RF on-off ratio for OOK/ASK modulation• SOP8 package

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