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Thermopad® Attenuation Shift Due To Self-Heating

Attenuation shift due to self-heating is not a consideration for low power applications. However, when you design circuits using the Thermopad® , it is important to provide proper heat dissipation.

Frequency Equalization using Attenuators

Using standard attenuators the customer can create an equalizer network to compensate system frequency dependence. An equalizer can be made by attaching an inductor, either a chip inductor or a quarter wave length PCB etched line, at the ground terminal of an attenuator with the other port of the inductor connecting to circuit ground (Figure 3).

Y-factor to Noise Figure Conversion Table

The “Y-factor” method of measuring a mixer or receiver noise figure involves measuring the system noise power output when the input is terminated 1) with a “hot” termination of known temperature of 2) with a “cold” termination of known temperature.