The IC is a very low power consumption single chip ASK Superheterodyne Receiver (SHR) for the frequency band 390MHz. The SHR 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 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 = 4.8mA typ.)
Supply voltage range 5V ±10%
Power down mode with very low supply current (50nA typ.)
Fully integrated VCO and PLL Synthesiser
RF input sensitivity < –110dBm
frequency band 390MHz
Selectable reference frequency
Limiter with RSSI generation, operating at 10.7MHz
2nd order low pass data filter with external capacitors
Data slicer with self-adjusting threshold
Temperature range -40°C...+85°C