CMX882E1

Overview

The CMX882E1 is a half-duplex audio and signalling processor manufactured by CML Microcircuits. It integrates sub-audio signalling capabilities and an FSK modem within a single integrated circuit. The device operates on a supply voltage range of 2.7V to 5.5V. It is housed in a 28-TSSOP surface-mount package with a width of 4.40mm. The component utilizes silicon technology and complies with RoHS3 standards. It is classified under RF Wireless Miscellaneous products.

Feature Summary

• Integrates half-duplex audio processing with sub-audio signalling functions
• Includes built-in FSK modem capability for data transmission
• Supports wide supply voltage operation from 2.7V to 5.5V

Applications

• Two-way radio communication systems
• Professional mobile radio equipment
• Public safety communication devices

Procurement Notes

Verify the specific suffix 'E1' against the manufacturer's official documentation to ensure correct pinout and functionality, as variations may exist within the CMX882 series. Confirm that the 28-TSSOP package dimensions match the target PCB footprint requirements. Check current availability status as the component may be subject to obsolescence notices or limited production runs. Ensure compliance with regional environmental regulations such as RoHS3 before finalizing procurement decisions.

Selection Notes

Select this component when a combined solution for audio handling and FSK data modulation is required in a compact form factor. The wide voltage range allows flexibility in power supply design across different system architectures. Consider the TSSOP-28 package size constraints during layout planning. Evaluate if the half-duplex nature aligns with the intended communication protocol requirements compared to full-duplex alternatives.

Part Context

The CMX882E1 belongs to the CMX882 family of baseband processors designed for professional radio applications. This series focuses on integrating multiple signal processing functions into a single chip to reduce board space and complexity. The E1 variant specifically denotes the packaged version suitable for surface mount assembly, distinguishing it from other package options or testing variants within the same functional family.

Replacement Considerations

The CMX7341Q3 is listed as a similar alternative part number by distributors. Verify electrical compatibility and pin-to-pin correspondence before substitution. Note that the CMX7341Q3 may have different packaging or operational characteristics requiring schematic review.