73128

RF Mixers

RF mixers are electronic components used in RF (radio frequency) circuits for signal processing. They are used to mix two or more frequencies together, as well as to convert one frequency to another. The 73128 is an analog RF mixer that provides high linearity, low noise and wide dynamic range.

Application

The 73128 can be used in a variety of applications, including radio signal reception, satellite transmission, cellular telecommunication, Wi-Fi, radio astronomy, radar and navigation systems. It can also be used in noise reduction systems, frequency synthesizers, and other analog and digital signal processing applications.

Working Principle

The 73128 is based on a Gilbert cell mixer circuit. It operates using an input balanced differential voltage to modulate the current flowing between input transistors. The output is then shaped by an op-amp and filtered to remove noise and unwanted harmonics. The output signal is amplified to the required level and detected. The mixer also has an RF port controlled by a voltage controlled oscillator which allows for frequency conversion.

The 73128 reliably provides high linearity and low noise in applications that require wide dynamic range, such as digital signal processing and frequency synthesis. When used with appropriate filtering, it can cut through noise and isolate signals in order to ensure accurate results.