General Description
The IC is a very low power consumption single chip FSK/ASK Superhet erodyne 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 genera
tor, a PLL FSK demodulator, a data filter, a data comparator (slicer) and a peak detector. Additionally there is a

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)