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

Product Attributes

Introduction

The IC is a very low power consumption single chip FSK/ASK Superheterodyne Receiver (SHR) for the frequency band 400 to 440 MHz. The IC offers a high level of integration and needs only a few external components. The device contains a low noise amplifier (LNA), a double balanced mixer, a fully integrated VCO, a PLL synthesiser, a crystal oscillator, a limiter with RSSI generator, a PLL FSK demodulator, a data filter, an advanced data comparator (slicer) with selection between two threshold modes and a peak detector. Additionally there is a power down feature to save current and extend battery life, and two selectable alternatives of generating the data slicer threshold.

Features

• Low supply current (Is = 5.7 mA typ. in FSK mode, Is = 5.0 mA typ. in ASK mode)
• Supply voltage range 5V ±10%
• Power down mode with very low supply current (50 nA typ.)
• FSK and ASK demodulation capability
• Fully integrated VCO and PLL Synthesiser
• ASK sensitivity better than -106 dBm over specified temperature range (-20 to +70°C)
• FSK sensitivity better than -100 dBm over specified temperature range (-20 to +70°C)
• Limiter with RSSI generation, operating at 10.7 MHz
• 2nd order low pass data filter with external capacitors
• Data slicer with selection between two threshold modes

Applications

• Remote Control Systems
• Alarm Systems
• Low Bitrate Communication Systems