LM1496M – NATIONAL SEMICONDUCTOR

The LM1496M, manufactured by National Semiconductor, is a balanced modulator/demodulator integrated circuit fabricated in a 14-pin Small Outline Integrated Circuit (SOIC) package (PDSO14). This device is designed for amplitude modulation, suppressed carrier modulation, synchronous detection, and frequency doubling applications. It features a double-balanced configuration, providing inherent carrier suppression. Key performance characteristics include high carrier suppression, typically 65 dB at 0.5 MHz, and low harmonic distortion. The LM1496M requires external resistors and capacitors for setting gain, bias, and frequency response, allowing for flexible circuit design. Its operating frequency range extends to approximately 10 MHz, dependent on external component selection and circuit topology. The device typically operates from a dual power supply, commonly ±8V to ±12V, and is characterized for operation over the commercial temperature range.