The IC is a very low power consumption single chip ASK Single Conversion Receiver for receive frequencies bands 868-870 MHz and 433-435 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 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.
Summary of Features:
- Low supply current (I s = 4.8 mA typ. at 868 MHz, I s = 4.6 mA typ. at 434 MHz)
- 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 < – 107 dBm
- Selectable frequency ranges around 868-870 MHz and 433-435 MHz
- Selectable reference frequency
- Limiter with RSSI generation, operating at 10.7 MHz
- 2 nd order low pass data filter with external capacitors
- Data slicer with self-adjusting threshold
- Keyless Entry Systems
- Remote Control Systems
- Alarm Systems
- Low Bitrate Communication Systems
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