CMX469AD3-TR1K

Overview

The CMX469AD3-TR1K is a full-duplex modem integrated circuit manufactured by CML Microcircuits. It supports baud rates of 1200, 2400, and 4800 bps using FFSK or MSK modulation schemes. The device operates on a single power supply ranging from 2.7V to 5.5V with a typical operating current of 4.5 mA. It is housed in a 20-SOIC surface-mount package with a width of 7.50 mm. The component functions as a modulator/demodulator for telecom interface applications.

Feature Summary

• Supports multiple baud rates including 1200, 2400, and 4800 bps
• Capable of FFSK and MSK modulation formats
• Operates within a wide voltage range of 2.7V to 5.5V

Applications

• Telecommunications interface systems
• Low-speed data transmission links
• Modem circuit design

Procurement Notes

Verify the specific suffix TR1K against official manufacturer documentation to confirm tape and reel packaging details. Ensure the part number matches the exact SOIC-20 variant intended for the design. Cross-reference RoHS compliance status and moisture sensitivity levels prior to procurement to meet assembly requirements.

Selection Notes

Select this component when designing circuits requiring full-duplex communication at standard telephony speeds. Verify that the system power supply remains within the 2.7V to 5.5V operational limits. Confirm that the 20-SOIC footprint aligns with the PCB layout constraints and thermal management needs of the target application.

Part Context

This part belongs to the CMX469 series of telecom interface ICs. It serves as a specialized modem solution for embedded communication systems. The AD3 designation typically indicates the SOIC-20 package variant, distinguishing it from other package options like TSSOP available within the same functional family.

Replacement Considerations

The CMX469AE2 offers identical electrical functionality but utilizes a 24-TSSOP package. Designers must evaluate pinout compatibility and physical footprint differences before substituting one for the other.