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MAX7042 - 308MHz/315MHz/418MHz/433.92MHz Low-Power FSK Superheterodyne Receiver

General Description

The MAX7042 fully integrated, low-power, CMOS superheterodyne RF receiver is designed to receive frequency-shift-keyed (FSK) data at rates up to 66kbps nonreturn-to-zero (NRZ) (33kbps Manchester).

Key Features

  • +2.4V to +3.6V or +4.5V to +5.5V Single-Supply Operation.
  • Four User-Selectable Carrier Frequencies 308, 315, 418, and 433.92MHz.
  • -110dBm RF Input Sensitivity at 315MHz.
  • -109dBm RF Input Sensitivity at 433.92MHz.
  • Fast Startup (< 250µs).
  • Small 32-Pin Thin QFN Package.
  • Low Operating Supply Current 6.2mA Continuous 20nA Power-Down.
  • Integrated PLL, VCO, and Loop Filter.
  • 45dB Integrated Image Rejection.
  • Selectab.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-3704; Rev 1; 3/07 www.DataSheet4U.com 308MHz/315MHz/418MHz/433.92MHz Low-Power, FSK Superheterodyne Receiver General Description The MAX7042 fully integrated, low-power, CMOS superheterodyne RF receiver is designed to receive frequency-shift-keyed (FSK) data at rates up to 66kbps nonreturn-to-zero (NRZ) (33kbps Manchester). The MAX7042 requires only a few external components to realize a complete wireless RF receiver at 308, 315, 418, and 433.92MHz. The MAX7042 includes all the active components required in a superheterodyne receiver including a lownoise amplifier (LNA), an image-rejection (IR) mixer, a fully integrated phase-locked loop (PLL), local oscillator (LO), 10.