Noise figure and noise temperature are related quantities. Which one is used depends on the application and the context. A noise figure and noise temperature calculator is now available on the Signal Processing Group website, under complementary items for interested users. For quick reference here is a table of converted values.
Last post dealt with MOSFET flicker noise. See:http://www.signalpro.biz/wordpress/analog-asic-design-a-mosfet-flicker-noise-calculator/. The calculator allows the user to calculate the flicker noise of a MOSFET using a relatively simple noise equation. This also leads to a rather simple rule and expression for the calculation of flicker noise. The expression states: rms noise/root Hz = AN/WL. Here W is the width of the MOSFET and L is the length of the MOSFET. AN is constant AN can be calculated by using the calculator. This allows simple calculations for various MOSFETs based on their gate area. The message is clear. If you want a low flicker noise then increase the gate area of the MOSFET. The calculator can be accessed from the Signal Processing Group Inc., website.
Check out our RF amplifier products
Take a look at the custom ASIC/module services offered by Signal Processing Group Inc. Click on the image below
Check out this book on impedance matching,
If you are interested in developing a custom analog chip or a RF IC please check out our custom design services by clicking on the image below.
Check out our RF amplifiers. Click on the image below.