MAX1473ETJ+

RF Receivers Overview

The MAX1473ETJ+ is a fully integrated low-power CMOS superheterodyne receiver designed for amplitude-shift-keyed (ASK) data reception within the 300MHz to 450MHz frequency range. It supports a signal input range from -114dBm to 0dBm and handles maximum data rates of 100kbps. The device operates on single 3.3V or 5.0V supplies, drawing a low operating supply current of 5.2mA. It features a built-in 50dB RF image rejection capability and includes an analog baseband data-recovery circuitry with a received-signal-strength indicator.

RF Receivers Feature Summary

• Fully integrated superheterodyne architecture with on-chip phase-locked-loop and voltage controlled oscillator
• High dynamic range performance supported by on-chip automatic gain control
• Low-current power-down mode enabling efficient power cycling for battery-operated systems
• Built-in RSSI functionality for monitoring received signal strength

RF Receivers Applications

• Automotive remote keyless entry systems
• Security alarm systems
• Garage door openers
• Home automation controllers
• Wireless sensor networks

RF Receivers Procurement Notes

Verify that the specific suffix ETJ corresponds to the 32-WFQFN exposed pad surface-mount package configuration. Confirm the active status of the component through official Analog Devices channels. Ensure compatibility with the required 300MHz to 450MHz ISM band specifications for your target application environment.

RF Receivers Selection Notes

Select this component when a cost-effective, low-power ASK receiver is required for short-range telemetry. The integrated PLL and minimal external component count simplify PCB layout. Consider the 250µs startup time for applications requiring rapid wake-up cycles. Evaluate the -114dBm sensitivity against the expected link budget requirements.

RF Receivers Part Context

This part belongs to the MAX1473 family of ASK receivers, which also includes variants like the MAX1473EUI. These devices are engineered for consumer and automotive markets where power efficiency and integration density are critical. The family shares core architectural similarities but may differ in package options and thermal characteristics.

RF Receivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical parameter compatibility before considering any alternative components from other manufacturers.