MICRF219AYQS

RF Receivers Overview

The MICRF219AYQS is a super-heterodyne, image-reject RF receiver designed for ASK and OOK modulation protocols. It operates within the 300MHz to 450MHz frequency range with a sensitivity of -112.5dBm. The device supports data rates up to 10kbps and functions on a supply voltage of 3V to 3.6V. Receive current consumption is 4.3mA. It features an analog RSSI output and Automatic Gain Control (AGC). The component is housed in a 16-QSOP package suitable for surface mount PCB installation.

RF Receivers Feature Summary

• Super-heterodyne architecture with image rejection capabilities
• Integrated Automatic Gain Control (AGC) for signal stability
• Analog RSSI output for signal strength monitoring
• Supports ASK and OOK demodulation protocols

RF Receivers Applications

• Wireless remote control systems
• Low-speed wireless sensor networks
• Security alarm transceivers
• Industrial telemetry applications

RF Receivers Procurement Notes

Verify the specific suffix 'AYQS' corresponds to the 16-QSOP package variant when ordering. Confirm that the required operating temperature range of -40°C to +105°C aligns with the application environment. Ensure the design accounts for the 3V to 3.6V supply voltage constraints. Check for moisture sensitivity levels if reflow soldering processes are utilized in the manufacturing workflow.

RF Receivers Selection Notes

Select this component for applications requiring high sensitivity at low data rates within the 300-450MHz band. The super-heterodyne design offers superior selectivity compared to direct conversion receivers. Consider the 4.3mA receive current for battery-powered designs. The analog RSSI feature simplifies link budget analysis without additional digital processing overhead.

RF Receivers Part Context

This part belongs to the MICRF219A family of QwikRadio receivers from Microchip Technology. It shares architectural similarities with the MICRF220 but differs in maximum data rate specifications. The MICRF219 series is optimized for simple, cost-effective wireless links where moderate sensitivity and low power consumption are prioritized over high throughput.

RF Receivers Replacement Considerations

MICRF219AAYQS-TR is the tape-and-reel version of this component. Direct functional substitutes within the same family include the MICRF220AYQS, though data rate differences must be evaluated.