The IC is a very low power consumption single chip FSK/ASK Superheterodyne Receiver (SHR) for the< frequency band 310 to 350 MHz that is pin compatible with the ASK Receiver TDA5201. 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, 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 (Is = 5.7 mA typ. in FSK mode, Is = 5 mA typ. in ASK mode)
Supply voltage range 5V ±10%
Power down mode with very low supply current (50nA typ.)
FSK and ASK demodulation capability
Fully integrated VCO and PLL Synthesiser
ASK sensitivity better than -110 dBm over specified temperature range (- 40 to +105°C)
Selectable frequency ranges 310- 330 MHz and 330-350 MHz
Limiter with RSSI generation, operating at 10.7MHz
Selectable reference frequency
2nd order low pass data filter with external capacitors
Data slicer with self-adjusting threshold
FSK sensitivity better than -102 dBm over specified temperature range (- 40 to +105°C)
