The MAX1470EUI+ is a 315MHz low power, +3V super heterodyne receiver in 28 pin TSSOP package. It is a fully integrated low power CMOS superheterodyne receiver for use with amplitude-shift keyed (ASK) data in the 315MHz band. With few required external components and a low-current power-down mode, it is ideal for cost and power sensitive applications in the consumer markets. The chip consists of a 315MHz low-noise amplifier (LNA), an image rejection mixer, a fully integrated 315MHz phase-lock-loop (PLL), a 10.7MHz IF limiting amplifier stage with received-signal strength indicator (RSSI) and an ASK demodulator and analogue base band data-recovery circuitry.
- Supply voltage range is 3V to 3.6V
- Operating temperature range from -40°C to 85°C
- Built-in 53dB RF image rejection
- Start-up time is 250μs
- Low operating supply current is 5.5mA
- 1.25μA low-current power-down mode for efficient power cycling
- 250MHz to 500MHz operating band
- Integrated PLL with on-board voltage-controlled oscillator (VCO) and loop filter
- Selectable IF bandwidth through external filter
- Complete receive system from RF to digital data out
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