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TDA5211 Scheda tecnica(PDF) 7 Page - Infineon Technologies AG |
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TDA5211 Scheda tecnica(HTML) 7 Page - Infineon Technologies AG |
7 / 52 page Product Description 2 - 2 TDA 5211 Wireless Components Specification, May 2001 2.1 Overview The IC is a very low power consumption single chip FSK/ASK Superheterodyne Receiver (SHR) for receive frequencies between 310 and 350 MHz that is pin compatible to the ASK Receiver TDA5201. The IC offers a high level of integra- tion 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. Addi- tionally there is a power down feature to save battery life. 2.2 Application s Keyless Entry Systems s Remote Control Systems s Alarm Systems s Low Bitrate Communication Systems 2.3 Features s Low supply current (Is = 5.7 mA typ.FSK mode, 5mA typ. ASK mode) s Supply voltage range 5V ±10% s Power down mode with very low supply current (50nA typ.) s FSK and ASK demodulation capability s Fully integrated VCO and PLL Synthesiser s RF input sensitivity ASK -113dBm typ. at 25°C, better than -110dBm over complete specified operating temperature range (-40 to +105°C) s RF input sensitivity FSK -105dBm typ. at 25°C, better than -102dBm over complete specified operating temperature range (-40 to +105°C) s Receive frequency range between 310 and 350 MHz s Selectable reference frequency s Limiter with RSSI generation, operating at 10.7MHz s 2nd order low pass data filter with external capacitors s Data slicer with self-adjusting threshold |
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