CMX7042L4

Overview

The CMX7042L4 is an AIS Class-A/B and exacTrax enabled baseband processor IC manufactured by CML Microcircuits. Designed for marine VHF communication systems, it operates within a supply voltage range of 3V to 3.6V. The device supports input frequencies between 9.6 MHz and 19.2 MHz, with a maximum operating frequency of 19.2 MHz. It is housed in a 48-LQFP (7x7) surface-mount package and functions as a modem capable of 0.0096Mbps data rates. The component is rated for operation at temperatures ranging from -40°C to +85°C, with a power dissipation of 1.6W.

Feature Summary

• Supports AIS Class-A and Class-B protocols along with exacTrax technology
• Integrates baseband processing for VHF maritime communications
• Includes built-in modem functionality for low-speed data transmission

Applications

• Marine VHF transceiver baseband processing
• Automatic Identification System (AIS) station integration
• exacTrax tracking system implementation

Procurement Notes

Verify the specific suffix 'L4' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the LQFP-48 footprint aligns with your PCB layout constraints. Confirm RoHS compliance status through official documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing VHF marine communication equipment requiring integrated AIS Class-A/B and exacTrax support. It is suitable for applications needing a single-chip solution for baseband modulation and demodulation within the specified 3V to 3.6V supply range. Consider the 48-LQFP package size and thermal dissipation capabilities during the initial hardware architecture phase.

Part Context

The CMX7042L4 belongs to the CMX7032/CMX7042 series of RF wireless miscellaneous components. It serves as a specialized baseband processor for maritime VHF applications, distinct from general-purpose modems. The part integrates modem capabilities directly into the baseband processing chain, simplifying system design for AIS-enabled vessels.

Replacement Considerations

Consult the official CML Micro product selection guide for direct functional equivalents within the CMX7032 or CMX7042 families. Verify compatibility regarding package type and pin configuration before substituting any alternative part numbers.