General Description
The IC is a very low power consumption single chip ASK Single Conversion Receiver for receive frequencies
between 310 and 350MHz. 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 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 = 4.6mA 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
- Selectable frequency ranges around 315 MHz and 345 MHz
- 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