MLX71121KLQ

RF Receivers Overview

The MLX71121KLQ is a superheterodyne RF receiver from Melexis Technologies NV, designed for ASK, FM, and FSK modulation protocols. It operates within a frequency range of 300MHz to 930MHz with a maximum data rate of 100kbps. The device features a sensitivity of -112dBm and draws 11mA during reception. It is powered by a supply voltage between 2.1V and 5.5V. The component is housed in a 32-QFN (5x5) package with an exposed pad, suitable for surface mount PCB assembly.

RF Receivers Feature Summary

• Superheterodyne architecture for improved signal selectivity
• Integrated RSSI capability for signal strength monitoring
• Support for multiple modulation formats including ASK, FM, and FSK
• Surface mount antenna connector design

RF Receivers Applications

• General remote control systems
• Garage door openers
• Keyless Entry Systems (RKE)

RF Receivers Procurement Notes

This component is officially listed as obsolete or discontinued by the manufacturer. Verification of current availability through authorized distributors is required. Ensure that any replacement sources provide valid authenticity documentation. Check for moisture sensitivity level compliance before soldering, as the part is sensitive to humidity. Confirm end-of-life status with the supplier prior to finalizing procurement plans.

RF Receivers Selection Notes

Select this component for applications requiring robust superheterodyne reception in the 300-930MHz band. It is suitable for designs needing low power consumption at 11mA and high sensitivity of -112dBm. The 32-QFN package fits compact PCB layouts. Verify compatibility with ASK, FM, or FSK protocols. Consider the obsolete status when planning long-term production runs.

RF Receivers Part Context

The MLX71121KLQ belongs to the MKX81121 series of wireless sensing RF receivers manufactured by Melexis Technologies NV. It utilizes silicon technology and is RoHS compliant. The part is classified under ECCN EAR99 and has a Moisture Sensitivity Level (MSL) of 3. It is distinct from similar models like the MLX71121CLQ primarily by its specific packaging and suffix variations.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require functional equivalents from other manufacturers or redesigning the circuit for newer Melexis components.