LM1496M

Overview

The LM1496M is a monolithic double-balanced modulator/demodulator manufactured by National Semiconductor. It produces an output voltage proportional to the product of an input signal voltage and a switched carrier function. The device is housed in a 14-pin Small Outline Integrated Circuit (SOIC) package, facilitating integration into compact circuit designs.

Feature Summary

• Monolithic double-balanced architecture for balanced inputs and outputs
• High common mode rejection capability
• Adjustable gain and signal handling characteristics

Applications

• Suppressed carrier modulation
• Amplitude modulation
• Synchronous detection
• Single sideband generation

Procurement Notes

Verify manufacturer origin as National Semiconductor or successor entities like Texas Instruments. Confirm the 14-SOIC package type matches design requirements. Check for obsolete status indicators as this component may be discontinued. Ensure documentation references the specific LM1496M suffix rather than generic family variants.

Selection Notes

Select this component when a double-balanced modulator/demodulator is required for analog interface circuits. The 14-pin SOIC package suits designs needing surface-mount integration. Consider thermal derating requirements if operating near maximum case temperatures. Verify compatibility with existing carrier and signal input levels.

Part Context

The LM1496M belongs to the LM1596/LM1496 family of balanced modulators. It shares functional similarities with the MC1496 series but is distinct in its specific National Semiconductor manufacturing lineage. The device serves as a core building block for RF signal processing applications requiring precise multiplication of voltage signals.

Replacement Considerations

Public confirmed substitutes include the MC1496 from NXP Semiconductors and ON Semiconductor. The NJM1496 from New Japan Radio is also listed as a similar double-balanced modulator-de-modulator. Verify pinout and electrical specifications before substitution.