LMC567CMX/NOPB

Telecom Overview

The LMC567CMX/NOPB is a tone decoder integrated circuit manufactured by Texas Instruments, belonging to the LM567C series. It operates on a single supply voltage ranging from 4V to 16V and draws a typical operating current of 12mA. The device features an internal oscillator capable of frequencies up to 500kHz, with a center frequency determined by external timing components. It is housed in an 8-SOIC surface-mount package and is rated for operation within a commercial temperature range of 0°C to +70°C.

Telecom Feature Summary

• Integrates a wideband amplifier, bandpass filter, and comparator for tone detection
• Features a versatile internal oscillator for flexible frequency tuning
• Provides a low-impedance output stage suitable for direct drive applications

Telecom Applications

• Tone decoding circuits
• Frequency shift keying (FSK) demodulation
• Over/under frequency alarm systems

Telecom Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and electrical characteristics. Ensure the component meets RoHS standards as indicated by the NOPB designation. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.

Telecom Selection Notes

Select this component when a general-purpose tone decoder is required for signal processing tasks. Consider the SOIC package constraints for PCB layout and verify that the operating frequency range aligns with the application requirements. Evaluate thermal dissipation capabilities relative to the expected power consumption in the target environment.

Telecom Part Context

This part belongs to the LM567 family of tone decoders, widely used in communication and industrial control systems. The LM567C variant typically offers improved performance over earlier generations, providing reliable frequency discrimination. The NOPB suffix indicates lead-free construction compliant with environmental directives.

Telecom Replacement Considerations

Direct replacements include the LM567CN or LM567CDR. Verify pin compatibility and electrical specifications before substitution. Alternative packages may require adapter solutions if footprint changes are not permitted.