LM1496N

Overview

The LM1496N is a balanced modulator-demodulator integrated circuit manufactured by National Semiconductor. It features excellent carrier suppression, achieving 65 dB typical at 0.5 MHz and 50 dB typical at 10 MHz. The device provides adjustable gain and signal handling capabilities with fully balanced inputs and outputs. It operates within a temperature range of 0°C to 70°C and utilizes a 14-pin PDIP package.

Feature Summary

• Excellent carrier suppression performance
• Adjustable gain and signal handling
• Fully balanced inputs and outputs

Applications

• FM modulation circuits
• Balanced modulation applications
• Demodulation systems

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm package integrity and pin configuration against the official datasheet specifications. Check for obsolescence status as National Semiconductor assets are managed by Texas Instruments. Ensure storage conditions comply with semiconductor handling guidelines to prevent damage prior to installation.

Selection Notes

Select this component when high carrier suppression is required in modulation designs. Consider the operating temperature range limits for environmental compatibility. Evaluate the need for adjustable gain features relative to system signal levels. Verify that the 14-pin PDIP package fits the target PCB layout constraints before finalizing the design choice.

Part Context

This part belongs to the analog linear modulation and demodulation family from National Semiconductor. It serves as a core building block for RF communication systems requiring precise signal mixing. The device complements other linear ICs in signal processing chains. Its design focuses on maintaining signal integrity during frequency conversion processes.

Replacement Considerations

Consult official substitution guides for equivalent balanced modulators. Verify pin compatibility and electrical parameter alignment before swapping components. Ensure thermal characteristics match the original design requirements. Review updated datasheets for any functional differences in alternative parts.