MLX71121KLQ-AAA-000-TU

RF Receivers Overview

The MLX71121KLQ-AAA-000-TU is a superheterodyne RF receiver module manufactured by Melexis Technologies NV. It operates within the 300MHz to 930MHz frequency range and supports ASK, FM, and FSK modulation protocols. The device features a sensitivity of -112dBm and a maximum data rate of 100kbps. It functions on a supply voltage between 2.1V and 5.5V with a receive current of 11mA. The component is housed in a 32-QFN (5x5) surface-mount package and operates within a temperature range of -10°C to 70°C.

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

RF Receivers Applications

• Automotive remote keyless entry systems
• Garage door openers
• General wireless sensing applications

RF Receivers Procurement Notes

This component is currently listed as obsolete or discontinued by the manufacturer. Verification of availability should focus on distributor surplus stock or alternative lifecycle statuses. Ensure that any sourced units are confirmed as original Melexis products with valid traceability documentation before integration into designs.

RF Receivers Selection Notes

Select this part for fixed-frequency applications requiring robust RF reception in automotive environments. Consider the specific pinout and thermal characteristics of the 32-QFN package during PCB layout. Verify that the required modulation type aligns with the system's transmitter capabilities and that the operating voltage range matches the target power supply.

RF Receivers Part Context

The MLX71121 series represents a family of compact RF receivers designed primarily for automotive use. This specific model variant utilizes silicon technology and is part of the broader MKX81121 series. It is engineered to meet stringent automotive reliability standards while providing efficient wireless communication solutions for short-range control tasks.

RF Receivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the component is marked as obsolete, engineers must evaluate functional equivalents from other manufacturers or consult official Melexis recommendations for direct replacements.