Product Summary

The MAX1473EUI+T is a 315MHz/433MHz ASK superheterodyne receiver with extended dynamic range. The MAX1473EUI+T fully integrated low-power CMOS superheterodyne receiver is ideal for receiving amplitudeshift-keyed (ASK) data in the 300MHz to 450MHz frequency range. Its signal range is from -114dBm to 0dBm. With few external components and a low-current power-down mode, it is ideal for cost- and power-sensitive applications typical in the automotive and consumer markets. The chip of the MAX1473EUI+T consists of a low-noise amplifier (LNA), a fully differential image-rejection mixer, an onchip phase-locked-loop (PLL) with integrated voltagecontrolled oscillator (VCO), a 10.7MHz IF limiting amplifier stage with received-signal-strength indicator (RSSI), and analog baseband data-recovery circuitry.

Parametrics

MAX1473EUI+T absolute maximum ratings: (1)VDD5 to AGND: -0.3V to +6.0V; (2)AVDD to AGND: -0.3V to +4.0V; (3)DVDD to DGND: -0.3V to +4.0V; (4)AGND to DGND: -0.1V to +0.1V; (5)IRSEL, DATAOUT, XTALSEL, AGCDIS, PWRDN to AGND: -0.3V to (VDD5 + 0.3V); (6)All Other Pins to AGND: -0.3V to (VDD + 0.3V); (7)Operating Temperature Ranges; (8)MAX1473E: -40℃ to +85℃; (9)Storage Temperature Range: -60℃ to +150℃; (10)Lead Temperature (soldering 10s): +300℃; (11)Soldering Temperature (reflow): +260℃.

Features

MAX1473EUI+T features: (1)Optimized for 315MHz or 433MHz ISM Band; (2)Operates from Single 3.3V or 5.0V Supplies; (3)High Dynamic Range with On-Chip AGC; (4)Selectable Image-Rejection Center Frequency; (5)Selectable x64 or x32 fLO/fXTAL Ratio; (6)Low 5.2mA Operating Supply Current; (7)< 2.5μA Low-Current Power-Down Mode for Efficient Power Cycling; (8)250μs Startup Time; (9)Built-In 50dB RF Image Rejection; (10)Receive Sensitivity of -114dBm.

Diagrams

MAX1473EUI+T Pin Configurations

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