General Description
●The IC is a very low power consumption single chip ASK Single Conversion Receiver for receive frequencies between 310 MHz and 350 MHz. The Receiver 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 synthesizer, a crystal oscillator, a limiter with RSSI generator, a data filter, a data comparator (slicer) and a peak detector. Additionally there is a power down feature to save battery life.
●Features
●• Low supply current (Is = 4.6 mA typ.)
●• Supply voltage range 5 V ±10 %
●• Power down mode with very low supply current (50 nA typ)
●• Fully integrated VCO and PLL Synthesizer
●• RF input sensitivity < – 110 dBm
●• Selectable frequency ranges around 315 MHz and 345 MHz
●• Selectable reference frequency
●• Limiter with RSSI generation, operating at 10.7 MHz
●• 2nd order low pass data filter with external capacitors
●• Data slicer with self-adjusting threshold
●Application
●• Keyless Entry Systems
●• Remote Control Systems
●• Fire Alarm Systems
●• Low Bitrate Communication Systems
