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TDA5220

The IC is a very low power consumption single chip FSK/ASK Superheterodyne Receiver (SHR) for the frequency bands 810 to 870 MHz and 400 to 440 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 synthesiser, a crystal oscillator, a limiter with RSSI generator, a PLL FSK demodulator, a data filter, an advanced data comparator (slicer) with selection between two threshold modes and a peak detector. Additionally there is a power down feature to save current and extend battery life, and two selectable alternatives of generating the data slicer threshold.

Parametric TDA5220 Frequency Band 434.0MHz Frequency Band 868.0MHz Channel Requirements per Band Single-Channel Modulation Type ASK / FSK Digital Baseband / Autonomous RX no Temperature  min  max -40.0°C  105.0°C Frequency Range  min  max 400.0MHz  440.0MHz Frequency Range  min  max 810.0MHz  870.0MHz ASK Receive Sensitivity -110.0dBm FSK Receive Sensitivity -103.0dBm Supply Voltage  min  max 4.5V  5.5V Sales Product Name TDA5220 OPN TDA5220XUMA1 Product Status active and preferred Package Name PG-TSSOP-28 Completely lead free yes Halogen free yes RoHS compliant yes Packing Size 3000 Packing Type TAPE & REEL Moisture Level 3

Summary of Features: Low supply current (Is = 5.7/5.9 mA typ. in FSK mode, Is = 5.0/5.2 mA typ. in ASK mode for 434/868 MHz) 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 -106 dBm over specified temperature range (- 40 to +105°C) FSK sensitivity better than -100 dBm over specified temperature range (- 40 to +105°C) Selectable frequency ranges 810-870 MHz and 400-440 MHz Limiter with RSSI generation, operating at 10.7MHz 2nd order low pass data filter with external capacitors Data slicer with selection between two threshold modes Target Applications: Keyless Entry Systems Remote Control Systems Alarm Systems Low Bitrate Communication Systems

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