آر اف (فرکانس رادیویی) و بی‌سیم آی سی‌ فرستنده‌گیرنده آر اف

Product Attributes

Introduction

PT4455 is a high performance OOK/ASK 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. The one-shot circuit control the phase-locked loop and power amplifier 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
• PLL-based transmitter with frequency range from 300MHz to 450MHz
• On-chip one-shot circuit
• 60dB RF on-off ratio for OOK/ASK modulation
• Available in 6-pin, SOT-23 package

Applications

• Keyless entry systems
• Remote control systems
• Garage door openers
• Alarm systems
• Security systems
• Wireless sensors